Southern Ontario

Vascular List

(Sorted by Scientific Name)

Based on the Ontario Plant List (Newmaster et al. 1998)

David J. Bradley Southern Science & Information Section Ontario Ministry of Natural Resources Peterborough, Ontario

Revised Edition, 2007 Southern Ontario Species List

This species checklist has been compiled in order to assist field biologists who are sampling vegetative plots in Southern Ontario. It is not intended to be a complete species list for the region. The intended range for this vascular plant list is Ecoregions (Site Regions) 5E, 6E and 7E.

i Nomenclature

The nomenclature used for this listing of 2,532 plant species, subspecies and varieties, is in accordance with the Ontario Plant List (OPL), 1998 [see Further Reading for full citation]. This is the Ontario Ministry of Natural Resource’s publication which has been selected as the corporate standard for plant nomenclature.

There have been many nomenclatural innovations in the past several years since the publication of the Ontario Plant List that are not reflected in this listing. However, the OPL has a listing of many of the synonyms that have been used recently in the botanical literature. For a more up to date listing of scientific plant names visit either of the following web sites:

Flora of - http://www.efloras.org/flora_page.aspx?flora_id=1 NatureServe - http://www.natureserve.org/explorer/servlet/NatureServe?init=Species

People who are familiar with the Natural Heritage Information Centre (NHIC) plant species list for Ontario, will notice some changes in the nomenclature. For example, most of the Aster species have now been put into the Symphyotrichum, with a few into the genus Eurybia. Flat- topped White Aster is now called Doellingeria umbellata. The genus Scirpus has also been split into different genera, with just a few remaining species being retained in the original genus. Most of these species are now in the genus Schoenoplectus, Trichophorum or Bolboschoenus.

With the use of DNA and other chemical analysis, botanical researchers will probably rearrange many more species in the near future.

Species Code

For data entered into handheld palm pilots, the use of abbreviated codes is often required. Most units do not have a memory capacity to hold pull down menus for all 2,532 species. Therefore an abbreviated code has been developed that is unique for each species, subspecies and variety.

The seven digit code is constructed by using the first four characters of the genus name followed by the first 3 characters of the species name. Therefore, White Trillium (Trillium grandiflorum) has the 7 digit code of TRILGRA. If there is a subspecies or variety ranking for a species, then the first two characters are used from the species name, and the third character is the first letter of the subspecies or varietal epithet. Enchanter’s Nightshade ( lutetiana ssp. canadensis) has the code CIRCLUC. In situations where the 7 digit codes for two separate species are the same, then another character is used for the seventh digit in the code. For example, Water Arum (Calla palustris) and Common Water Starwort (Callitriche palustris) would both produce the same seven character code. In this case the code CALLPLS is used for Water Arum, and CALLPLU is used for the Common Water Starwort. Below are some additional examples;

Red Oak Quercus rubra QUERRUB Black Maple Acer saccharum ssp. nigrum ACERSAN Sugar Maple Acer saccharum ssp. saccharum ACERSAS Northern Lady Athyrium filix-femina var. angustum ATHYFIA Plantain-leaved Sedge plantaginea CAREPLA Broad-leaved Wood Sedge Carex platyphylla CAREPLT Slender Wood Sedge Carex gracilescens CAREGRA Graceful Sedge Carex gracillima CAREGRM

ii SRank

The Natural Heritage Information Centre uses a ranking system that considers the provincial rank of an element as a tool to prioritize protection efforts. The provincial (Sub-national) rank is known as the SRANK. These ranks have been assigned using the best available scientific information, and follow a systematic ranking procedure developed by The Nature Conservancy (U.S.). The ranks are based on three factors: estimated number of occurrences, estimated community extent, and estimated range of the community within the province. The provincial ranks are summarized below. S1 - Extremely rare in Ontario; usually 5 or fewer occurrences in the province, or very few remaining hectares

S2 - Very rare in Ontario; usually between 5 and 20 occurrences in the province, or few remaining hectares

S3 - Rare to uncommon in Ontario; usually between 20 and 100 occurrences in the province; may have fewer occurrences, but with some extensive examples remaining

S4 - Considered to be common in Ontario. It denotes that a species is apparently secure, with over 100 occurrences in the province

S5 - Indicates that a species is widespread in Ontario, it is demonstrably secure in the province

These provincial ranks may further be modified.

S2S3 - Indicates that an element is rare, but insufficient information exists to accurately assign a single rank

SE - Indicates exotic introductions to the flora

SH - Indicates that an element is known historically for the province, but it hasn't been seen in the past 20 years. It is not known conclusively to be extirpated in Ontario

SHB - Indicates that the species is of a hybrid origin

SX - Indicates that an element is extirpated from the province

SU - Indicates that the status is uncertain due to insufficient information

SRF - Is a species that was recorded falsely for the province

Form Code

This column describes the general form of the plant species. Is it a forb, shrub or tree?

Non vascular such as Mosses, Liverworts, Hornworts, Algae and have general placeholder codes which have been included in this listing. Some of the more open communities have a significant amount of covers of non vascular plants, so it is necessary to record these entities within a sample plot or polygon.

AL Algae filamentous algal species found in aquatic habitats FE Fern non-flowering, vascular plant, reproducing by spores

iii FO Forb herbaceous broad-leaved plant GR Grass graminoid plants that have stems with nodes () HR Hornwort members of the Anthocerotophyta division of plants LC crustose, foliose and fruticose lichen species LV Liverwort members of the Hepaticophyta division of plants MO Moss members of the Bryophyta division of plants RU Rush graminoid plants with round stems (Juncaceae) SE Sedge graminoid plants with angular stems () SH Shrub plants with erect, reclining or prostrate woody stems (usually with more than one stem) TR Tree woody having a single (1- 3), usually elongate main stem VI Vine that trails, clings, or twines, and requires support to grow vertically VW Woody Vine a vine with a perennial woody stem

Further Reading and Resources:

Flora of North America north of Mexico: online website. 2007 Flora of North America Editorial Committee Botanical Garden, Missouri http://www.efloras.org/flora_page.aspx?flora_id=1

Flora Ontario: online website. 2007 Flora Ontario – Integrated Botanical Information System (FOIBIS), Phase 1, 2005 University of Guelph, Guelph, Ontario http://uoguelph.ca/foibis/

Natural Heritage Information Centre: online website. 2007 Vascular Plant Species List Ontario Ministry of Natural Resources, Science & Information Branch Peterborough, Ontario http://nhic.mnr.gov.on.ca/nhic_.cfm

Nature Conservancy : online website. 2007 R.R. #5, 5420 Highway 6 North, Guelph, Ontario http://www.natureconservancy.ca/site/PageServer?pagename=ncc_main

NatureServe Explorer: online website. 2007 National Biological Information Infrastructure, U. S. Geological Survey Arlington, http://www.natureserve.org/explorer/servlet/NatureServe?init=Species

Newmaster, S. G., A. Lehela, Peter W. C. Uhlig, Sean McMurray and Michael J. Oldham. 1998 Ontario Plant List Forest Research Information Paper No. 123, Ontario Forest Research Institute Ontario Ministry of Natural Resources, Sault Ste. Marie, Ontario

Oldham, Michael J. 1999 Natural Heritage Resources of Ontario: Rare Vascular Plants. 3rd edition Natural Heritage Information Centre Ontario Ministry of Natural Resources, Peterborough, Ontario

iv Southern Ontario Vascular Plant List 2,532 records Scientific Name Common Name Code S Rank Form Abies balsamea Balsam Fir ABIEBAL S5 TR Abutilon theophrasti Velvetleaf ABUTTHE SE5 FO Acalypha virginica var. rhomboidea Three-seeded Mercury ACALVIR S5 FO Acer ginnala Amur Maple ACERGIN SE1 SH Acer negundo Manitoba Maple ACERNEG S5 TR Acer pensylvanicum Striped Maple ACERPEN S5 SH Acer platanoides Maple ACERPLA SE5 TR Acer rubrum Red Maple ACERRUB S5 TR Acer saccharinum Silver Maple ACERSCR S5 TR Acer saccharum ssp. nigrum Black Maple ACERSAN S4? TR Acer saccharum ssp. saccharum Sugar Maple ACERSAS S5 TR Acer sp Maple Species ACER_SP TR Acer spicatum Mountain Maple ACERSPI S5 SH Acer X freemanii Freeman's Maple ACERFRE SHB4 TR Achillea millefolium ssp. lanulosa Woolly Yarrow ACHIMIL S5 FO Achillea millefolium ssp. millefolium Common Yarrow ACHIMIM SE FO Achillea ptarmica Sneezewort ACHIPTA SE2? FO Achillea sp Yarrow Species ACHI_SP FO Acinos arvensis Mother-of-thyme ACINARV SE5 FO Acorus americanus Sweetflag ACORAME S4 FO Acorus calamus Calamus ACORCAL SE1 FO Actaea pachypoda White Baneberry ACTAPAC S5 FO Actaea rubra Red Baneberry ACTARUB S5 FO Actaea sp Baneberry Species ACTA_SP FO Actaea X ludovici Hybrid Baneberry ACTALUD SHB1? FO Adenocaulon bicolor Trail-plant ADENBIC S1 FO Adiantum pedatum Northern Maidenhair Fern ADIAPED S5 FE Adlumia fungosa Allegheny Vine ADLUFUN S4 VI Aegopodium podagraria Goutweed AEGOPOD SE5 FO Aesculus glabra Buckeye AESCGLG S1 TR Aesculus hippocastanum Horse Chestnut AESCHIP SE2 TR Aesculus sp Buckeye Species AESC_SP TR Aethusa cynapium Fool's Parsley AETHCYN SE1 FO Agalinis gattingeri Round-stem False Foxglove AGALGAT S2 FO Agalinis paupercula var. paupercula Small-flowered False Foxglove AGALPAP S4S5 FO Agalinis purpurea Purple False Foxglove AGALPUR S1 FO Agalinis skinneriana Pale False Foxglove AGALSKI S1 FO Agalinis tenuifolia var. parviflora Slender False Foxglove AGALTEP S4S5 FO Agastache foeniculum Blue Giant Hyssop AGASFOE S4 FO Agastache nepetoides Yellow Giant Hyssop AGASNEP S4 FO Agrimonia gryposepala Tall Agrimony AGRIGRY S5 FO Agrimonia parviflora Small-flowered Agrimony AGRIPAR S3 FO Agrimonia pubescens Soft Agrimony AGRIPUB S4 FO Agrimonia sp Agrimony Species AGRI_SP FO Agropyron cristatum ssp. pectinatum Crested Wheat Grass AGROCRP SE2 GR Agrostemma githago Purple Cockle AGROGIT SE3 FO

Monday, March 05, 2007 Page 1 of 52 Scientific Name Common Name Code S Rank Form Agrostis capillaris Colonial Bent Grass AGROCAP SE2 GR Agrostis gigantea Redtop Grass AGROGIG SE5 GR Agrostis hyemalis Tickle Grass AGROHYE S1 GR Agrostis perennans Autumn Bent Grass AGROPER S5 GR Agrostis scabra Rough Hair Grass AGROSCA S5 GR Agrostis sp Bent Grass Species AGRO_SP GR Agrostis stolonifera Creeping Bent Grass AGROSTO S5 GR Ailanthus altissima Tree-of-heaven AILAALT SE5 TR genevensis Erect Bugle AJUGGEN SE1 FO Common Bugle AJUGREP SE2 FO Alcea rosea Hollyhock ALCEROS SE4 FO Aletris farinosa Colic- ALETFAR S2 FO Algae sp Algae Species ALGA_SP AL Alisma gramineum Narrow-leaved Water-plantain ALISGRA S3S4 FO Alisma plantago-aquatica Common Water-plantain ALISPLA S4? FO Alliaria petiolata Garlic Mustard ALLIPET SE5 FO Allium burdickii Norrow-leaved Wild Leek ALLIBUR S1? FO Allium canadense var. canadense Wild Garlic ALLICAC S5 FO Allium cernuum Nodding Wild Onion ALLICER S2 FO Allium sativum Garlic ALLISAT SE2 FO Allium schoenoprasum var. schoenoprasum European Chives ALLISCC SE2 FO Allium schoenoprasum var. sibiricum Wild Chives ALLISCS S4 FO Allium sp Onion Species ALLI_SP FO Allium tricoccum Wild Leek ALLITRI S5 FO Allium vineale ssp. vineale Field Garlic ALLIVIV SE2 FO Alnus glutinosa Black ALNUGLU SE4 SH Alnus incana ssp. rugosa Speckled Alder ALNUINR S5 SH Alnus sp Alder Species ALNU_SP SH Alnus viridis ssp. crispa Green Alder ALNUVIC S5 SH Alopecurus aequalis Short-awned Foxtail ALOPAEQ S4S5 GR Alopecurus geniculatus Water Foxtail ALOPGEN SE3 GR Alopecurus pratensis Meadow Foxtail ALOPPRA SE5 GR Althaea officinalis Marsh Mallow ALTHOFF SE1 FO alyssoides Pale Alyssum ALYSALY SE5 FO Alyssum murale Rock Alyssum ALYSMUR SE1 FO Amaranthus albus Tumble Pigweed AMARALB SE5 FO Amaranthus blitoides Prostrate Pigweed AMARBLI SE4? FO Amaranthus hybridus Smooth Pigweed AMARHYB SE5? FO Amaranthus powellii Green Pigweed AMARPOW SE5 FO Amaranthus retroflexus Redroot Pigweed AMARRET SE5 FO Amaranthus sp Pigweed Species AMAR_SP FO Amaranthus tuberculatus Water-hemp AMARTUB S4 FO Ambrosia artemisiifolia Common Ragweed AMBRART S5 FO Ambrosia psilostachya Perennial Ragweed AMBRPSI S4 FO Ambrosia sp Ragweed Species AMBR_SP FO Ambrosia trifida Giant Ragweed AMBRTRI S5 FO Amelanchier alnifolia Saskatoon Berry AMELALN S4? SH Amelanchier arborea Downy Serviceberry AMELARB S5 SH Amelanchier laevis Smooth Serviceberry AMELLAE S5 SH

Monday, March 05, 2007 Page 2 of 52 Scientific Name Common Name Code S Rank Form Amelanchier sanguinea Round-leaved Serviceberry AMELSAN S5? SH Amelanchier sp Serviceberry Species AMEL_SP SH Amelanchier stolonifera Low Serviceberry AMELSTO S4? SH Amerorchis rotundifolia Round-leaved Orchis AMERROT S4S5 FO Ammannia robusta Sessile Tooth Cup AMMAROB S1 FO breviligulata Beach Grass AMMOBRE S3 GR Amorpha fruticosa False-indigo AMORFRU S1 SH Amphicarpaea bracteata Hog Peanut AMPHBRA S5 VI Anagallis arvensis Scarlet Pimpernel ANAGARV SE4 FO Anaphalis margaritacea Pearly Everlasting ANAPMAR S5 FO Andromeda polifolia ssp. glaucophylla Bog Rosemary ANDRPOG S5 SH Andropogon gerardii Big Bluestem ANDRGER S4 GR Andropogon virginicus Broom-sedge ANDRVIR S4 GR Anemone acutiloba Sharp-lobed Hepatica ANEMACU S5 FO Anemone americana Round-lobed Hepatica ANEMAME S5 FO Anemone canadensis Canada Anemone ANEMCAN S5 FO Anemone cylindrica Long-headed Anemone ANEMCYL S4 FO Anemone multifida Cut-leaved Anemone ANEMMUL S5 FO Anemone quinquefolia Wood Anemone ANEMQUI S5 FO Anemone sp Anemone Species ANEM_SP FO Anemone virginiana var. alba White Thimbleweed ANEMVIA SU FO Anemone virginiana var. virginiana Thimbleweed ANEMVIV S5 FO Anethum graveolens Dill ANETGRA SE1? FO Angelica atropurpurea Purple-stem Angelica ANGEATR S5 FO howellii ssp. canadensis Canada Pussytoes ANTEHOC SU FO Antennaria howellii ssp. neodioica Small Pussytoes ANTEHON SU FO Antennaria howellii ssp. petaloidea Sessile-leaved Pussytoes ANTEHOP SU FO Antennaria neglecta Field Pussytoes ANTENEG S5 FO Antennaria parlinii ssp. fallax Hairy Pussytoes ANTEPAF SU FO Antennaria parlinii ssp. parlinii Smooth Pussytoes ANTEPAP SU FO Antennaria sp Pussytoes Species ANTE_SP FO arvensis Corn Chamomile ANTHARV SE5 FO Anthemis cotula Stinking Chamomile ANTHCOT SE5 FO Anthemis tinctoria Yellow Chamomile ANTHTIN SE1 FO Anthoxanthum odoratum ssp. odoratum Sweet Vernal Grass ANTHODO SE4 GR Anthriscus sylvestris Wild Chervil ANTHSYL SE4? FO Anthyllis vulneraria Kidney Vetch ANTHVUL SE1 FO Apera interrupta Interrupted Windgrass APERINT SE2 GR Apera spica-venti Windlestraw APERSPI SE3 GR Apios americana Groundnut APIOAME S5 VI Aplectrum hyemale Putty-root APLEHYE S2 FO Apocynum androsaemifolium ssp. androsaemifolium Spreading Dogbane APOCANA S5 FO Apocynum cannabinum Indian Hemp APOCCAN S5 FO Apocynum sp Dogbane Species APOC_SP FO Aquilegia canadensis Wild Columbine AQUICAN S5 FO Aquilegia vulgaris Garden Columbine AQUIVUL SE3 FO Arabidopsis thaliana Wall Cress ARABTHA SE5 FO Arabis canadensis Sicklepod ARABCAN S4 FO Arabis divaricarpa var. divaricarpa Purple Rock Cress ARABDIL S5 FO

Monday, March 05, 2007 Page 3 of 52 Scientific Name Common Name Code S Rank Form Arabis drummondii Drummond's Rock Cress ARABDRU S4 FO Arabis glabra Tower Mustard ARABGLA S5 FO Arabis hirsuta var. adpressipilis Flat-hair Rock Cress ARABHIA S1 FO Arabis hirsuta var. pycnocarpa Hairy Rock Cress ARABHIP S5 FO Arabis laevigata Smooth Rock Cress ARABLAE S5 FO Arabis lyrata Lyre-leaved Rock Cress ARABLYR S4 FO Arabis shortii Toothed Rock Cress ARABSHO S2 FO Arabis sp Rock Cress Species ARAB_SP FO Aralia hispida Bristly Sarsaparilla ARALHIS S5 SH Aralia nudicaulis Wild Sarsaparilla ARALNUD S5 FO Aralia racemosa ssp. racemosa Spikenard ARALRAR S5 FO Aralia sp Sarsaparilla Species ARAL_SP FO Arceuthobium pusillum Dwarf Mistletoe ARCEPUS S5 FO Arctium lappa Great Burdock ARCTLAP SE5 FO Arctium minus ssp. minus Common Burdock ARCTMIM SE5 FO Arctium minus ssp. nemorosum Woodland Burdock ARCTMIN SE1? FO Arctium sp Burdock Species ARCT_SP FO Arctostaphylos uva-ursi Bearberry ARCTUVA S5 SH Arenaria serpyllifolia Thyme-leaved Sandwort ARENSER SE5 FO Arethusa bulbosa Dragon's Mouth ARETBUL S4 FO Argemone mexicana Mexican Prickly Poppy ARGEMEX SE1 FO Arisaema dracontium Green Dragon ARISDRA S3 FO Arisaema triphyllum ssp. triphyllum Jack-in-the-pulpit ARISTRT S5 FO Aristida basiramea Forked Three-awned Grass ARISBAS S1 GR Aristida dichotoma Churchmouse Three-awned Grass ARISDIC S1 GR Aristida longespica var. geniculata Long-spiked Three-awn Grass ARISLOG S2 GR Aristida longespica var. longespica Slim-spiked Three-awn Grass ARISLON S2 GR Aristida oligantha Prairie Three-awn Grass ARISOLI SE2 GR Aristida purpurascens var. purpurascens Arrow-feather Three-awn Grass ARISPUP S1 GR Aristida sp Three-awn Grass Species ARIS_SP GR Aristolochia clematitis Birthwort ARISCLE SE1 VI Aristolochia macrophylla Dutchman's-pipe ARISMAC SE1 VI Armoracia lacustris Lake Cress ARMOLAC S3? FO Armoracia rusticana Horseradish ARMORUS SE4 FO Aronia melanocarpa Black Chokeberry ARONMEL S5 SH Arrhenatherum elatius Tall Oat Grass ARRHELA SE4 GR abrotanum Southern Wormwood ARTEABR SE1 FO Artemisia absinthium Common Wormwood ARTEABS SE3? FO Artemisia annua Sweet Wormwood ARTEANN SE1 FO Artemisia biennis Biennial Wormwood ARTEBIE SE5 FO Artemisia campestris ssp. borealis Boreal Wormwood ARTECAB S4? FO Artemisia campestris ssp. caudata Sagewort Wormwood ARTECAC S4S5 FO Artemisia ludoviciana Dark-leaved Mugwort ARTELUD S4? FO Artemisia pontica Roman Wormwood ARTEPON SE2? FO Artemisia sp Wormwood Species ARTE_SP FO Artemisia stelleriana Beach Wormwood ARTESTE SE1 FO Artemisia vulgaris Common Mugwort ARTEVUL SE5 FO Aruncus dioicus Bride's Feather ARUNDIO SE1 FO Asarum canadense Wild Ginger ASARCAN S5 FO

Monday, March 05, 2007 Page 4 of 52 Scientific Name Common Name Code S Rank Form Asclepias exaltata Poke Milkweed ASCLEXA S4 FO Asclepias hirtella Tall Green Milkweed ASCLHIR S1 FO Asclepias incarnata ssp. incarnata Swamp Milkweed ASCLINI S5 FO Asclepias purpurascens Purple Milkweed ASCLPUR S2 FO Asclepias sp Milkweed Species ASCL_SP FO Asclepias sullivantii Prairie Milkweed ASCLSUL S2 FO Asclepias syriaca Common Milkweed ASCLSYR S5 FO Asclepias tuberosa Butterfly Weed ASCLTUB S4 FO Asclepias verticillata Whorled Milkweed ASCLVER S2 FO Asclepias viridiflora Green Milkweed ASCLVIR S2 FO Asimina triloba Pawpaw ASIMTRI S3 SH Asparagus officinalis Asparagus ASPAOFF SE5 FO Asplenium platyneuron Ebony Spleenwort ASPLPLA S4 FE Asplenium rhizophyllum Walking Fern ASPLRHI S4 FE Asplenium ruta-muraria Wall Rue ASPLRUT S2 FE Asplenium scolopendrium var. americanum Hart's-tongue Fern ASPLSCA S3 FE Asplenium sp Spleenwort Species ASPL_SP FE Asplenium trichomanes ssp. quadrivalens Calcic Maidenhair Spleenwort ASPLTRQ S5 FE Asplenium trichomanes ssp. trichomanes Maidenhair Spleenwort ASPLTRT SU FE Asplenium trichomanes-ramosum Green Spleenwort ASPLTRI S4 FE Aster acuminatus Whorled Wood Aster ASTEACU S4 FO Aster borealis Rush Aster ASTEBOR S5 FO Aster brachyactis Rayless Annual Aster ASTEBRA S3? FO Aster ciliolatus Ciliolate Aster ASTECIL S5 FO Aster cordifolius Heart-leaved Aster ASTECOR S5 FO Aster divaricatus White Wood Aster ASTEDIV S2 FO Aster dumosus var. strictior Bushy Aster ASTEDUS S2 FO Aster ericoides var. ericoides Heath Aster ASTEERE S5 FO Aster laevis var. laevis Smooth Aster ASTELAL S5 FO Aster lanceolatus ssp. lanceolatus Panicled Aster ASTELAN S5 FO Aster lateriflorus var. hirsuticaulis Calico Aster ASTELAU S4? FO Aster lateriflorus var. lateriflorus One-sided Aster ASTELAF S5 FO Aster macrophyllus Large-leaved Aster ASTEMAC S5 FO Aster nemoralis Bog Aster ASTENEM S5 FO Aster novae-angliae New England Aster ASTENOV S5 FO Aster ontarionis var. ontarionis Ontario Aster ASTEONO S4 FO Aster oolentangiensis Azure Aster ASTEOOL S4 FO Aster pilosus var. pilosus Hairy Aster ASTEPIP S5 FO Aster pilosus var. pringlei Pringle's Aster ASTEPIR S4 FO Aster praealtus var. praealtus Aster ASTEPRP S2 FO Aster prenanthoides Crooked-stem Aster ASTEPRE S2 FO Aster puniceus var. firmus Swamp Aster ASTEPUF SU FO Aster puniceus var. puniceus Purple-stem Aster ASTEPUP S5 FO Aster schreberi Schreber's Aster ASTESCH S1 FO Aster shortii Short's Aster ASTESHO S4 FO Aster sp Aster Species ASTE_SP FO Aster subulatus var. subulatus Salt-marsh Aster ASTESUS SE2 FO Aster umbellatus var. umbellatus Flat-topped White Aster ASTEUMU S5 FO Aster urophyllus Arrow-leaved Aster ASTEURO S4 FO

Monday, March 05, 2007 Page 5 of 52 Scientific Name Common Name Code S Rank Form Aster X amethystinus Amethyst Aster ASTEAMT SHB3? FO Astragalus canadensis Canada Milkvetch ASTRCAN S4 FO Astragalus cicer Cicer Milkvetch ASTRCIC SE1 FO Astragalus glycophyllos Sweet-leaved Milkvetch ASTRGLY SE1 FO Astragalus neglectus Cooper's Milkvetch ASTRNEG S3 FO Astragalus sp Milkvetch Species ASTR_SP FO Athyrium filix-femina var. angustum Northern Lady Fern ATHYFIA S5 FE Atriplex hortensis Garden Orache ATRIHOR SE1 FO Atriplex patula Spearscale ATRIPAT S5 FO Atriplex rosea Red Orache ATRIROS SE1 FO Atriplex sp Orach Species ATRP_SP FO Aureolaria flava Smooth False Foxglove AUREFLA S3 FO Aureolaria pedicularia Cut-leaved False Foxglove AUREPED S3 FO Aureolaria virginica Downy False Foxglove AUREVIR S1 FO saxatilis Goldentuft AURISAX SE1 FO Avena fatua Wild Oats AVENFAT SE3 GR Avena sativa Cultivated Oats AVENSAT SE3 GR Azolla caroliniana Mosquito Fern AZOLCAR S1 FE Baptisia tinctoria Yellow Indigo BAPTTIN S2 FO Barbarea orthoceras Northern Wintercress BARBORT S4? FO Barbarea vulgaris Common Wintercress BARBVUL SE5 FO Bartonia virginica Yellow Bartonia BARTVIR S2 FO Beckmannia syzigachne American Slough Grass BECKSYZ S4 GR Bellis perennis English Daisy BELLPER SE5 FO Berberis sp Barberry Species BERB_SP SH Berberis thunbergii Japanese Barberry BERBTHU SE5 SH Berberis vulgaris Common Barberry BERBVUL SE5 SH Hoary Alyssum BERTINC SE5 FO Betula alleghaniensis Yellow BETUALL S5 TR Betula lenta Cherry Birch BETULEN S1 TR Betula papyrifera White Birch BETUPAP S5 TR Betula pendula European White Birch BETUPEN SE4 TR Betula populifolia Gray Birch BETUPOP S5 TR Betula pubescens ssp. pubescens Downy Birch BETUPUP SE1 TR Betula pumila Dwarf Birch BETUPUM S5 SH Betula sp Birch Species BETU_SP TR aristosa Bearded Beggar-ticks BIDEARI SE1 FO Bidens cernua Nodding Beggar-ticks BIDECER S5 FO Bidens coronata Tall Swamp Beggar-ticks BIDECOR S2 FO Bidens discoidea Small Beggar-ticks BIDEDIS S4 FO Bidens frondosa Devil's Beggar-ticks BIDEFRO S5 FO Bidens sp Beggar-ticks Species BIDE_SP FO Bidens tripartita Three-lobed Beggar-ticks BIDETRI S5 FO Bidens vulgata Tall Beggar-ticks BIDEVUL S5 FO Blephilia ciliata Downy Wood Mint BLEPCIL S1 FO Blephilia hirsuta Hairy Wood Mint BLEPHIR S1 FO Boehmeria cylindrica False Nettle BOEHCYL S5 FO Borago officinalis Borage BORAOFF SE1 FO Botrychium dissectum Cut-leaved Grape Fern BOTRDIS S5 FE

Monday, March 05, 2007 Page 6 of 52 Scientific Name Common Name Code S Rank Form Botrychium lanceolatum ssp. angustisegmentum Lance-leaved Grape Fern BOTRLAA S3 FE Botrychium matricariifolium Daisy-leaved Grape Fern BOTRMAT S4S5 FE Botrychium minganense Mingan Moonwort BOTRMIN S4 FE Botrychium multifidum Leathery Grape Fern BOTRMUL S5 FE Botrychium oneidense Blunt-lobed Grape Fern BOTRONE S3 FE Botrychium rugulosum St. Lawrence Grape Fern BOTRRUG S2 FE Botrychium simplex Least Grape Fern BOTRSIM S4? FE Botrychium sp Grape Fern Species BOTR_SP FE Botrychium virginianum Rattlesnake Fern BOTRVIR S5 FE Bouteloua curtipendula Side-oats Grama BOUTCUR S2 GR erectum var. erectum Long-awned Wood Grass BRACERE S4? GR Brachyelytrum erectum var. grabratum Northern Long-awned Wood Grass BRACERG S4S5 GR Brasenia schreberi Water-shield BRASSCH S5 FO Brassica juncea Indian Mustard BRASJUN SE5 FO Brassica napus Rape BRASNAP SE1 FO Brassica nigra Black Mustard BRASNIG SE5 FO Brassica rapa Wild Turnip BRASRAP SE5 FO Brassica sp Mustard Species BRAS_SP FO media Small Quaking Grass BRIZMED SE1 GR briziformis Rattlesnake Chess BROMBRI SE1 GR Bromus ciliatus Fringed Brome BROMCIL S5 GR Bromus commutatus Hairy Chess BROMCOM SE4 GR Bromus erectus Upright Brome BROMERE SE1 GR Bromus inermis ssp. inermis Smooth Brome BROMINI SE5 GR Bromus japonicus Japanese Chess BROMJAP SE4 GR Bromus kalmii Prairie Brome BROMKAL S4 GR Bromus latiglumis Tall Brome BROMLAT S4 GR Bromus pubescens Canada Brome BROMPUB S4 GR Bromus secalinus ssp. secalinus Chess BROMSES SE4 GR Bromus sp Brome Species BROM_SP GR Bromus squarrosus Rough Brome BROMSQU SE2 GR Bromus sterilis Barren Brome BROMSTE SE1 GR Bromus tectorum Downy Chess BROMTEC SE5 GR Bromus X pseudothominii Hybrid Soft Brome BROMPSE SHBE2 GR Buchnera americana Blue-hearts BUCHAME S1 FO Buglossoides arvensis Corn Gromwell BUGLARV SE5 FO Bulbostylis capillaris ssp. capillaris Hair-like Bulbostylis BULBCAC S3? SE Butomus umbellatus Flowering-rush BUTOUMB SE5 FO Cacalia plantaginea Prairie Indian-plantain CACAPLA S3 FO Cakile edentula Sea-rocket CAKIEDE S4 FO canadensis Canada Blue-joint CALACAN S5 GR Calamagrostis epigejos Feathertop CALAEPI SE2 GR Calamagrostis sp Reed Grass Species CALA_SP GR Calamagrostis stricta ssp. inexpansa Narrow Reed Grass CALASTI S5 GR Calamintha arkansana Wild Savoury CALAARK S4S5 FO Calamovilfa longifolia var. magna Sand Reed CALALOM S3 GR Calendula officinalis Pot-marigold CALEOFF SE1 FO Calla palustris Water Arum CALLPLS S5 FO Callitriche hermaphroditica Autumn Water Starwort CALLHER S5 FO

Monday, March 05, 2007 Page 7 of 52 Scientific Name Common Name Code S Rank Form Callitriche heterophylla ssp. heterophylla Larger Water Starwort CALLHEH S2? FO Callitriche palustris Common Water Starwort CALLPLU S5 FO Callitriche sp Water Starwort Species CALH_SP FO Calopogon tuberosus Grass Pink CALOTUB S4S5 FO Caltha palustris Marsh Marigold CALTPAL S5 FO Calypso bulbosa Calypso CALYBUL S4S5 FO Calystegia sepium ssp. angulata Hedge Bindweed CALYSEG S5 FO Calystegia sp Bindweed Species CALS_SP FO Calystegia spithamaea ssp. spithamaea Low Bindweed CALYSPS S4S5 FO Camassia scilloides Wild Hyacinth CAMASCI S2 FO Camelina microcarpa Small-fruited False Flax CAMEMIC SE5 FO Camelina sativa Gold-of-pleasure CAMESAT SE3 FO americana Tall Bellflower CAMPAME S4 FO Campanula aparinoides Marsh Bellflower CAMPAPA S5 FO Campanula medium Canterbury-bells CAMPMED SE1 FO Campanula rapunculoides European Bellflower CAMPRAP SE5 FO Campanula rotundifolia Harebell CAMPROT S5 FO Campanula sp Bellfower Species CAMP_SP FO Campanula trachelium Nettle-leaved Bellflower CAMPTRA SE1 FO Campsis radicans Trumpet Creeper CAMPRAD S2 VW Cannabis sativa Marijuana CANNSAT SE1 FO Capsella bursa-pastoris Shepherd's Purse CAPSBUR SE5 FO Caragana arborescens Siberian Pea Tree CARAARB SE1 SH Cardamine bulbosa White Spring Cress CARDBUL S4 FO Cardamine concatenata Cut-leaved Toothwort CARDCON S5 FO Cardamine diphylla Broad-leaved Toothwort CARDDIP S5 FO Cardamine douglassii Pink Spring Cress CARDDOU S4 FO Cardamine flexuosa Bitter Cress CARDFLE SE1 FO Cardamine hirsuta Hairy Bitter Cress CARDHIR SE3 FO Cardamine impatiens Cardamine CARDIMP SE1 FO Cardamine parviflora Small-flowered Bitter Cress CARDPAR S5 FO Cardamine pensylvanica Bitter Cress CARDPEN S5 FO Cardamine pratensis ssp. pratensis Cuckoo- CARDPRA S5 FO Cardamine sp Bitter Cress Species CARD_SP FO Cardaria draba ssp. draba Whitlow Pepperwort CARDDRD SE2 FO Carduus acanthoides Spiny Plumeless Thistle CARDACA SE5 FO Carduus crispus Curled Thistle CARDCRI SE FO Carduus nutans ssp. leiophyllus Nodding Thistle CARDNUL SE5 FO Carduus sp Plumeless Thistle Species CARU_SP FO Carex aggregata Crowded Sedge CAREAGG S1 SE Carex alata Broad-winged Sedge CAREALA S1 SE Carex albicans var. albicans Blunt-scaled Oak Sedge CAREALB S2 SE Carex albicans var. emmonsii Sharp-scaled Oak Sedge CAREALE S1 SE Carex albursina Blunt-scaled Wood Sedge CAREALU S5 SE Carex alopecoidea Brown-headed Fox Sedge CAREALO S5 SE Carex amphibola var. amphibola Gray Sedge CAREAMA S2 SE Carex amphibola var. turgida Wood Gray Sedge CAREAMT S4 SE Carex annectens var. annectens Large Yellow Fox Sedge CAREANA S1 SE Carex annectens var. xanthocarpa Small Yellow Fox Sedge CAREANX S2 SE

Monday, March 05, 2007 Page 8 of 52 Scientific Name Common Name Code S Rank Form Carex appalachica Appalachian Sedge CAREAPP S2S3 SE Carex aquatilis Water Sedge CAREAQU S5 SE Drooping Wood Sedge CAREART S5 SE Carex argyrantha Silvery-flowered Sedge CAREARG S2S3 SE Carex atherodes Hairy-leaved Lake Sedge CAREATH S4S5 SE Carex atlantica ssp. capillacea Atlantic Star Sedge CAREATL S1 SE Carex aurea Golden-fruited Sedge CAREAUR S5 SE Carex backii Back's Sedge CAREBAC S4S5 SE Carex bebbii Bebb's Sedge CAREBEB S5 SE Carex bicknellii Copper-shouldered Sedge CAREBIC S2 SE Carex blanda Common Wood Sedge CAREBLA S5 SE Carex brevior Short-beaked Sedge CAREBRE S4S5 SE Carex bromoides Bromelike Sedge CAREBRO S5 SE Carex brunnescens Brownish Sedge CAREBRU S5 SE Carex buxbaumii Dark-scaled Sedge CAREBUX S5 SE Carex canescens Silvery Sedge CARECAN S5 SE Carex capillaris ssp. capillaris Hair-like Sedge CARECAP S5 SE Carex careyana Carey's Wood Sedge CARECAR S2 SE Carex castanea Chestnut-scaled Sedge CARECAS S5 SE Carex cephaloidea Rough-clustered Sedge CARECEP S5 SE Carex cephalophora Oval-headed Sedge CARECEH S5 SE Carex chordorrhiza Creeping Sedge CARECHO S5 SE Carex communis Fibrous Rooted Sedge CARECOM S5 SE Carex comosa Bristly Sedge CARECOO S5 SE Carex concinna Coniferous Wood Sedge CARECON S5 SE Carex conoidea Field Sedge CARECOI S3 SE Carex crawei Early Fen Sedge CARECRA S4 SE Carex crawfordii Crawford's Sedge CARECRW S5 SE Carex crinita Fringed Sedge CARECRI S5 SE Carex cristatella Crested Sedge CARECRS S5 SE Carex crus-corvi Raven's-foot Sedge CARECRU S1 SE Carex cryptolepis Small Yellow Sedge CARECRY S4 SE Carex cumulata Clustered Sedge CARECUM S4 SE Awned Graceful Sedge CAREDAV S2 SE Carex debilis Northern White-edged Sedge CAREDEB S5 SE Carex deflexa Northern Sedge CAREDEF S5 SE Carex deweyana Dewey's Sedge CAREDEW S5 SE Carex diandra Lesser Panicled Sedge CAREDIA S5 SE Carex Narrow-leaved Wood Sedge CAREDIG S4S5 SE Carex disperma Two-seeded Sedge CAREDIS S5 SE Bristle-leaved Sedge CAREEBU S5 SE Carex echinata Large-fruited Star Sedge CAREECH S5 SE Carex emoryi Riverbank Sedge CAREEMO S3 SE Carex exilis Coast Sedge CAREEXI S5 SE Carex festucacea Fescue Oval Sedge CAREFES S1 SE Carex flacca Flabby Sedge CAREFLA SE2 SE Carex flava Yellow Sedge CAREFLV S5 SE Carex foenea Bronze Sedge CAREFOE S5 FO Carex folliculata Long Sedge CAREFOL S3 SE

Monday, March 05, 2007 Page 9 of 52 Scientific Name Common Name Code S Rank Form Carex formosa Awnless Graceful Sedge CAREFOR S3S4 SE Carex frankii Bristly Cattail Sedge CAREFRA S2 SE Carex garberi False Golden Sedge CAREGAR S4 SE Carex glaucodea Blue Sedge CAREGLU S1 SE Carex gracilescens Slender Wood Sedge CAREGRA S3 SE Carex gracillima Graceful Sedge CAREGRM S5 SE Carex granularis Meadow Sedge CAREGRN S5 SE Carex grayi Common Bur Sedge CAREGRY S4 SE Carex gynandra Nodding Sedge CAREGYN S5 SE Carex gynocrates Ridged Sedge CAREGYO S5 SE Carex haydenii Long-scaled Tussock Sedge CAREHAY S3 SE Carex hirsutella Hairy Green Sedge CAREHIR S3 SE Hammer Sedge CAREHRT SE2 SE Carex hirtifolia Hairy Wood Sedge CAREHII S5 SE Carex hitchcockiana Hitchcock's Sedge CAREHIT S5 SE Carex houghtoniana Houghton's Sedge CAREHOU S5 SE Carex hyalinolepis Hyaline-scaled Sedge CAREHYA S4 SE Carex hystericina Porcupine Sedge CAREHYS S5 SE Carex inops ssp. heliophila Sun-loving Sedge CAREINO S1 SE Carex interior Inland Sedge CAREINT S5 SE Carex intumescens Bladder Sedge CAREINU S5 SE James' Sedge CAREJAM S3 SE Carex juniperorum Juniper Sedge CAREJUN S1 SE Carex lacustris Lakebank Sedge CARELAC S5 SE Carex laevivaginata Smooth-sheathed Sedge CARELAE S4 SE Carex lasiocarpa Narrow-leaved Woolly Sedge CARELAS S5 SE Carex laxiculmis var. copulata Spreading Wood Sedge CARELAU S3? SE Carex laxiculmis var. laxiculmis Weak-stemmed Wood Sedge CARELXC S4 SE Carex laxiflora Loose-flowered Sedge CARELAX S5 SE Carex leavenworthii Leavenworth's Sedge CARELEA S1 SE Carex lenticularis Lenticular Sedge CARELEN S5 SE Carex leptalea Bristle-stalked Sedge CARELEP S5 SE Carex leptonervia Few-nerved Wood Sedge CARELET S4 SE Carex limosa Mud Sedge CARELIM S5 SE Carex livida Livid Sedge CARELIV S5 SE Carex lucorum Distant Sedge CARELUC S4 SE Carex lupuliformis Knobbed Hop Sedge CARELPL S1 SE Carex lupulina Common Hop Sedge CARELUP S5 SE Carex lurida Sallow Sedge CARELUR S5 SE Carex magellanica ssp. irrigua Stunted Sedge CAREMAG S5 SE Carex meadii Mead's Sedge CAREMEA S2 SE Carex merritt-fernaldii Merritt's Sedge CAREMER S5 SE Carex mesochorea Midland Sedge CAREMES S1 SE Carex molesta Troublesome Sedge CAREMOL S4? SE Carex muhlenbergii var. muhlenbergii Muhlenberg's Sedge CAREMUH S4S5 SE Carex muricata Rough-pointed Sedge CAREMUR SE1 SE Carex muskingumensis Swamp Sedge CAREMUS S2 SE Carex nigromarginata Black-edged Sedge CARENIG S1 SE Carex normalis Larger Straw Sedge CARENOR S4 SE

Monday, March 05, 2007 Page 10 of 52 Scientific Name Common Name Code S Rank Form Carex novae-angliae Norway Sedge CARENOE S3 SE Carex oligocarpa Few-fruited Sedge CAREOLG S2 SE Carex oligosperma Few-seeded Sedge CAREOLI S4 SE Carex ormostachya Necklace-like Spiked Sedge CAREORM S4 SE Carex pallescens Pale Sedge CAREPAE S5 SE Carex parryana Parry's Sedge CAREPAR S1? SE Carex pauciflora Few-flowered Sedge CAREPAU S5 SE Carex peckii Peck's Sedge CAREPEC S5 SE Carex pedunculata Long-stalked Sedge CAREPED S5 SE Carex pellita Broad-leaved Woolly Sedge CAREPEL S5 SE Carex pensylvanica Pennsylvania Sedge CAREPEN S5 SE Plantain-leaved Sedge CAREPLA S5 SE Carex platyphylla Broad-leaved Wood Sedge CAREPLT S5 SE Carex praegracilis Expressway Sedge CAREPRA SE5 SE Carex prairea Prairie Sedge CAREPRI S5 SE Carex prasina Drooping Sedge CAREPRS S4 SE Carex praticola Large-fruited Oval Sedge CAREPRT S2 SE Carex projecta Necklace Sedge CAREPRO S5 SE Carex pseudo- Cypress-like Sedge CAREPSE S5 SE Carex radiata Radiate Sedge CARERAD S4 SE Carex retroflexa Reflexed Sedge CARERTF S1 SE Carex retrorsa Retrorse Sedge CARERET S5 SE Carex richardsonii Prairie Hummock Sedge CARERIC S4? SE Carex rosea Stellate Sedge CAREROE S5 SE Carex sartwellii Running Marsh Sedge CARESAR S4 SE Carex scabrata Rough Sedge CARESCA S5 SE Carex schweinitzii Schweinitz's Sedge CARESCH S3 SE Rush-like Sedge CARESCI S5 SE Carex scoparia Pointed Broom Sedge CARESCO S5 SE Carex seorsa Swamp Star Sedge CARESEO S2 SE Carex shortiana Short's Sedge CARESHO S1 SE Carex siccata Hay Sedge CARESIC S5 SE Carex sp Sedge Species CARE_SP SE Carex sparganioides Bur-reed Sedge CARESPA S5 SE Carex spicata Spiked Sedge CARESPI SE5 SE Carex sprengelii Long-beaked Sedge CARESPR S5 SE Carex squarrosa Narrow-leaved Cattail Sedge CARESQU S2 SE Carex sterilis Fen Star Sedge CARESTE S4 SE Carex stipata Awl-fruited Sedge CARESTI S5 SE Carex stricta Tussock Sedge CARESTR S5 SE Carex suberecta Prairie Straw Sedge CARESUB S2 SE Carex swanii Downy Green Sedge CARESWA S3 SE Carex sychnocephala Dense Long-beaked Sedge CARESYC S4 SE Woodland Sedge CARESYL SE2 SE Carex tenera Slender Straw Sedge CARETEN S5 SE Carex tenuiflora Sparse-flowered Sedge CARETEU S5 SE Carex tetanica Rigid Sedge CARETET S3 SE Carex tonsa var. rugosperma Dark-green Sedge CARETOR S5 SE Carex tonsa var. tonsa Smooth-fruited Oak Sedge CARETOT S4S5 SE

Monday, March 05, 2007 Page 11 of 52 Scientific Name Common Name Code S Rank Form Carex tribuloides Blunt Broom Sedge CARETRI S4S5 SE Carex trichocarpa Hairy-fruited Sedge CARETRC S3 SE Carex trisperma Three-seeded Sedge CARETRT S5 SE Carex tuckermanii Tuckerman's Sedge CARETUC S4 SE Carex typhina Cattail Sedge CARETYP S2 SE Carex umbellata Early Oak Sedge CAREUMB S5 SE Carex utriculata Beaked Sedge CAREUTR S5 SE Carex vaginata Sheathed Sedge CAREVAG S5 SE Carex vesicaria Inflated Sedge CAREVES S5 SE Carex virescens Ribbed Sedge CAREVIR S3 SE Carex viridula Greenish Sedge CAREVIV S5 SE Carex vulpinoidea Fox Sedge CAREVUL S5 SE Carex wiegandii Wiegand's Sedge CAREWIE S1 SE Williams' Sedge CAREWIL S1 SE Carex woodii Purple-tinged Sedge CAREWOO S4 SE Carex X subimpressa Hybrid Woolly Sedge CARESUI SHB2 SE Carpinus caroliniana Blue Beech CARPCAR S5 SH Carum carvi Common Caraway CARUCAR SE1? FO Carya cordiformis Bitternut Hickory CARYCOR S5 TR Carya glabra Pignut Hickory CARYGLA S3 TR Carya laciniosa Big Shellbark Hickory CARYLAC S3 TR Carya ovata Shagbark Hickory CARYOVA S5 TR Carya sp Hickory Species CARY_SP TR Cassia hebecarpa American Senna CASSHEB S1 FO Castanea dentata American Chestnut CASTDEN S2 TR Castilleja coccinea Indian Paintbrush CASTCOC S5 FO Catalpa speciosa Northern Catalpa CATASPE SE1 TR giganteum Purple-flowered Blue Cohosh CAULGIG S4? FO Caulophyllum thalictroides Blue Cohosh CAULTHA S5 FO Ceanothus americanus Tea CEANAME S4 SH Ceanothus herbaceus Narrow-leaved New Jersey Tea CEANHER S4 SH Ceanothus sp New Jersey Tea Species CEAN_SP SH Celastrus scandens Climbing Bittersweet CELASCA S5 VW Celtis occidentalis Hackberry CELTOCC S4 TR Celtis sp Hackberry Species CELT_SP TR Celtis tenuifolia Dwarf Hackberry CELTTEN S2 SH Cenchrus longispinus Sandbur CENCLON S4 GR cyanus Bachelor's Button CENTCYA SE1 FO Centaurea diffusa Spreading Knapweed CENTDIF SE1 FO Centaurea jacea Brown Knapweed CENTJAC SE5 FO Centaurea macrocephala Bighead Knapweed CENTMCR SE1 FO Centaurea maculosa Spotted Knapweed CENTMAC SE5 FO Centaurea nigra Black Knapweed CENTNIG SE? FO Centaurea nigrescens Tyrol Knapweed CENTNIN SE5 FO Centaurea sp Knapweed Species CENT_SP FO Centaurium erythraea Common Centaury CENTERY SE3 FO Centaurium pulchellum Branching Centaury CENTPUL SE3 FO Cephalanthus occidentalis Buttonbush CEPHOCC S5 SH Cerastium arvense ssp. arvense Meadow Chickweed CERAARA SE3 FO

Monday, March 05, 2007 Page 12 of 52 Scientific Name Common Name Code S Rank Form Cerastium arvense ssp. strictum Field Chickweed CERAARS S4 FO Cerastium brachypodum Short-stalked Chickweed CERABRA S1 FO Cerastium fontanum Common Mouse-ear Chickweed CERAFON SE5 FO Cerastium glomeratum Sticky Chickweed CERAGLO SE1 FO Cerastium nutans Nodding Chickweed CERANUT S4 FO Cerastium pumilum Dwarf Chickweed CERAPUM SE2 FO Cerastium semidecandrum Small Mouse-ear Chickweed CERASEM SE5 FO Cerastium sp Chickweed Species CERA_SP FO Cerastium tomentosum Snow-in-summer CERATOM SE2 FO Cerastium velutinum Long-hairy Chickweed CERAVEL S2 FO demersum Common Coontail CERADEM S5 FO Ceratophyllum echinatum Prickly Hornwort CERAECH S3 FO Ceratophyllum sp Coontail Species CERT_SP FO Cercis canadensis Redbud CERCCAN SX SH Chaenorrhinum minus Lesser Toadflax CHAEMIN SE5 FO Chaerophyllum procumbens var. procumbens Spreading Chervil CHAEPRP S2 FO Chamaedaphne calyculata Leatherleaf CHAMCAL S5 SH Chamaesyce glyptosperma Ridge-seeded Broomspurge CHAMGLY SE5 FO Chamaesyce humistrata Prostrate Broomspurge CHAMHUM SE1 FO Chamaesyce maculata Blotched Broomspurge CHAMMAC SE5 FO Chamaesyce nutans Little Ground Broomspurge CHAMNUT S4S5 FO Chamaesyce polygonifolia Seaside Broomspurge CHAMPOL S4 FO Chamaesyce serpyllifolia Thyme-leaved Broomspurge CHAMSRP SE2? FO Chamaesyce sp Broomspurge Species CHAM_SP FO Chamaesyce vermiculata Hairy Broomspurge CHAMVER S5 FO Chara sp Stonewort Species CHAR_SP AL Chelidonium majus Celandine CHELMAJ SE5 FO Chelone glabra Turtlehead CHELGLA S5 FO Chenopodium album var. album Lamb's Quarters CHENALA SE5 FO Chenopodium ambrosioides Mexican Tea CHENAMB SE1 FO Chenopodium bonus-henricus Good King Henry CHENBON SE1 FO Chenopodium botrys Jerusalem Oak Goosefoot CHENBOT SE4 FO Chenopodium bushianum Bush's Goosefoot CHENBEB S1S2 FO Chenopodium capitatum Strawberry Blite CHENCAP S5 FO Chenopodium foggii Fogg's Goosefoot CHENFOG S2 FO Chenopodium glaucum ssp. glaucum Oak-leaved Goosefoot CHENGLG SE5 FO Chenopodium murale Sow-bane CHENMUR SE1 FO Chenopodium rubrum Coast-blite CHENRUB SE2 FO Chenopodium simplex Maple-leaved Goosefoot CHENSIM S5 FO Chenopodium sp Goosefoot Species CHEN_SP FO Chenopodium standleyanum Bosc's Goosefoot CHENSTA S2 FO Chenopodium urbicum Upright Goosefoot CHENURB SE1 FO Chenopodium vulvaria Stinking Goosefoot CHENVUL SE1 FO Chimaphila maculata var. maculata Spotted Wintergreen CHIMMAM S1 SH Chimaphila umbellata ssp. cisatlantica Pipsissewa CHIMUMC S5 SH Chondrilla juncea Skeleton-weed CHONJUN SE1 FO Chrysanthemum leucanthemum Ox-eye Daisy CHRYLEU SE5 FO Chrysosplenium americanum Golden Saxifrage CHRYAME S5 FO Cichorium intybus Chicory CICHINT SE5 FO

Monday, March 05, 2007 Page 13 of 52 Scientific Name Common Name Code S Rank Form Cicuta bulbifera Bulb-bearing Water-hemlock CICUBUL S5 FO Cicuta maculata Spotted Water-hemlock CICUMAC S5 FO Cicuta sp Water-hemlock Species CICU_SP FO Cimicifuga racemosa Black Cohosh CIMIRAC S2 FO Cinna arundinacea Stout Woodreed CINNARU S4 GR Cinna latifolia Drooping Woodreed CINNLAT S5 GR Cinna sp Woodreed Species CINN_SP GR Dwarf Enchanter's Nightshade CIRCALP S5 FO Circaea lutetiana ssp. canadensis Canada Enchanter's Nightshade CIRCLUC S5 FO Circaea sp Enchanter's Nightshade Species CIRC_SP FO Cirsium arvense Canada Thistle CIRSARE SE5 FO Cirsium discolor Field Thistle CIRSDIS S4 FO Cirsium hillii Prairie Thistle CIRSHIL S3 FO Cirsium muticum Swamp Thistle CIRSMUT S5 FO Cirsium pitcheri Pitcher's Thistle CIRSPIT S2 FO Cirsium sp Thistle Species CIRS_SP FO Cirsium vulgare Bull Thistle CIRSVUL SE5 FO Cladium mariscoides Twig-rush CLADMAR S5 SE Cladonia sp Raindeer Moss Species CLAD_SP LC Claytonia caroliniana Carolina Spring Beauty CLAYCAR S5 FO Claytonia sp Spring Beauty Species CLAY_SP FO Claytonia virginica Virginia Spring Beauty CLAYVIR S5 FO Clematis occidentalis Purple Clematis CLEMOCC S4S5 VI Clematis sp Clematis Species CLEM_SP VI Clematis virginiana Virgin's Bower CLEMVIR S5 VI Cleome hassleriana Spider Plant CLEOHAS SE1 FO Cleome serrulata Stinking Clover CLEOSER SE1 FO Clinopodium vulgare Wild Basil CLINVUL S5 FO Clintonia borealis Bluebead Lily CLINBOR S5 FO Coeloglossum viride var. virescens Long-bracted Green Orchid COELVIV S4 FO Collinsia parviflora var. parviflora Few-flowered Collinsia COLLPAP S3 FO Collinsonia canadensis Horsebalm COLLCAN S4 FO Comandra umbellata Bastard Toadflax COMAUMB S5 FO Commelina communis Asiatic Day-flower COMMCOM SE3 FO Comptonia peregrina Sweet Fern COMPPER S5 SH Conioselinum chinense Hemlock-parsley CONICHI S3 FO Conium maculatum Poison Hemlock CONIMAC SE2? FO Conopholis americana Squawroot CONOAME S4? FO Conringia orientalis Treacle Mustard CONRORI SE2 FO Consolida ajacis Rocket Larkspur CONSAJA SE1 FO Convallaria majalis Lily-of-the-valley CONVMAJ SE5 FO Convolvulus arvensis Field Bindweed CONVARV SE5 VI Conyza canadensis Horseweed CONYCAN S5 FO Coptis trifolia ssp. groenlandica Goldthread COPTTRG S5 FO Corallorhiza maculata Spotted Coralroot CORAMAC S5 FO Corallorhiza odontorhiza Autumn Coralroot CORAODO S2 FO Corallorhiza sp Coralroot Species CORA_SP FO Corallorhiza striata Striped Coralroot CORASTR S4 FO Corallorhiza trifida Early Coralroot CORATRI S5 FO

Monday, March 05, 2007 Page 14 of 52 Scientific Name Common Name Code S Rank Form grandiflora Large-flowered Coreopsis COREGRA SE3? FO Coreopsis lanceolata Lance-leaved Coreopsis CORELAN S4? FO Coreopsis sp Coreopsis Species CORE_SP FO Coreopsis tinctoria Golden Coreopsis CORETIN SE1 FO Coreopsis tripteris Tall Coreopsis CORETRP S2 FO Coriandrum sativum Common Coriander CORISAT SE1 FO Corispermum hookeri Hooker's Bugseed CORIHOO S1S3 FO Corispermum pallasii Pallas Bugseed CORIPAL S1S3 FO Corispermum villosum Villose Bugseed CORIVIL S1S3 FO Cornus alternifolia Alternate-leaved Dogwood CORNALT S5 SH Cornus amomum ssp. obliqua Silky Dogwood CORNAMO S5 SH Bunchberry CORNCAN S5 SH Cornus drummondii Rough-leaved Dogwood CORNDRU S4 SH Cornus Eastern Flowering Dogwood CORNFLO S2 SH Cornus foemina ssp. racemosa Gray Dogwood CORNFOR S5 SH Cornus rugosa Round-leaved Dogwood CORNRUG S5 SH Cornus sp Dogwood Species CORN_SP SH Cornus stolonifera Red-osier Dogwood CORNSTO S5 SH Coronilla varia Trailing Crown-vetch COROVAR SE5 FO Corydalis aurea Golden Corydalis CORYAUR S5 FO Corydalis flavula Pale Corydalis CORYFLA S2 FO Corydalis sempervirens Pink Corydalis CORYSEM S5 FO Corylus americana American Hazelnut CORYAME S5 SH Corylus cornuta Beaked Hazelnut CORYCOR S5 SH Corylus sp Hazelnut Species CORY_SP SH Cosmos bipinnatus Black Cosmos COSMBIP SE1 FO apiomorpha Pear-shaped Hawthorn CRATAPI S1S2 SH Crataegus brainerdii Brainerd's Hawthorn CRATBRA S2 SH Crataegus calpodendron Pear Hawthorn CRATCAL S4S5 SH Crataegus chrysocarpa Fireberry Hawthorn CRATCHR S5 SH Crataegus compacta Thames Hawthorn CRATCOC S4 SH Crataegus crus-galli Cockspur Hawthorn CRATCRU S5 SH Crataegus dilatata Broad- Hawthorn CRATDIL S2 SH Crataegus dissona Northern Hawthorn CRATDIN S3 SH Crataegus dodgei Dodge's Hawthorn CRATDOD S4 SH Crataegus douglasii Black Hawthorn CRATDOU S4 SH Crataegus flabellata Fanleaf Hawthorn CRATFLA S4 SH Crataegus formosa Beautiful Hawthorn CRATFOR S2 SH Crataegus holmesiana Holmes Hawthorn CRATHOL SRF SH Crataegus irrasa Blanchard's Hawthorn CRATIRR S4? SH Crataegus lumaria Round-leaved Hawthorn CRATLUM S3? SH Crataegus macracantha Long-spined Hawthorn CRATMAC S5 SH Crataegus macrosperma Variable Hawthorn CRATMCS S5 SH Downy Hawthorn CRATMOL S5 SH Crataegus monogyna One-seeded Hawthorn CRATMON SE5 SH Crataegus pedicellata Pedicelled Hawthorn CRATPED SRF SH Crataegus persimilis Bush's Hawthorn CRATPER S1 SH Crataegus pringlei Pringle's Hawthorn CRATPRI S5 SH Crataegus pruinosa Frosted Hawthorn CRATPRU S4? SH

Monday, March 05, 2007 Page 15 of 52 Scientific Name Common Name Code S Rank Form Crataegus punctata Dotted Hawthorn CRATPUN S5 SH Crataegus schuettei Royal Hawthorn CRATSCH S4 SH Crataegus sp Hawthorn Species CRAT_SP SH Crataegus submollis Emerson's Hawthorn CRATSBM S4S5 SH Crataegus suborbiculata Caughuawaga Hawthorn CRATSUB S1 SH Fleshy Hawthorn CRATSUC S4S5 SH Crataegus sylvestris Woodland Hawthorn CRATSYL SU SH capillaris Smooth Hawk's Beard CREPCAP SE1 FO Crepis sp Hawk's Beard Species CREP_SP FO Crepis tectorum Narrow-leaved Hawk's Beard CREPTEC SE5 FO Croton capitatus Woolly Croton CROTCAP SE1 FO Crypsis schoenoides False Timothy CRYPSCH SE1 GR Cryptogramma stelleri Slender Cliff-brake CRYPSTE S4S5 FE Cryptotaenia canadensis Honewort CRYPCAN S5 FO Cucurbita sp Gourd Species CUCU_SP VI Cuscuta campestris Prairie Dodder CUSCCAM S2 FO Cuscuta cephalanthi Button-bush Dodder CUSCCEP S2 FO Cuscuta coryli Hazel Dodder CUSCCOR S1 FO Cuscuta gronovii Common Dodder CUSCGRO S5 FO Cuscuta sp Dodder Species CUSC_SP FO Cycloloma atriplicifolium Winged Pigweed CYCLATR S4 FO Cymbalaria muralis Kenilworth Ivy CYMBMUR SE1 FO Cynanchum nigrum Black Swallow-wort CYNANIG SE VI Cynanchum rossicum White Swallow-wort CYNAROS SE5 VI Cynanchum sp Swallow-wort Species CYNA_SP VI Cynoglossum boreale Wild Comfrey CYNOBOR S4 FO Cynoglossum officinale Common Hound's-tongue CYNOOFF SE5 FO Cynosurus cristatus Crested Dog's-tail CYNOCRI SE1 GR Cyperus bipartitus Brook Nut Sedge CYPEBIP S5 SE Cyperus dentatus Toothed Flat Sedge CYPEDEN S1 SE Cyperus diandrus Umbrella Flat Sedge CYPEDIA S4 SE Cyperus erythrorhizos Red-rooted Nut Sedge CYPEERY S3 SE Cyperus esculentus Field Nut Sedge CYPEESC S5 SE Cyperus flavescens Yellow Flat Sedge CYPEFLA S2 SE Cyperus fuscus Brown Flat Sedge CYPEFUS SE2 SE Cyperus houghtonii Smooth Sand Sedge CYPEHOU S3? SE Cyperus lupulinus ssp. macilentus Great Plains Flat Sedge CYPELUM S4 SE Cyperus odoratus False Rusty Nut Sedge CYPEODO S5 SE Cyperus schweinitzii Rough Sand Sedge CYPESCH S3 SE Cyperus sp Flat Sedge Species CYPE_SP SE Cyperus squarrosus Bearded Flat Sedge CYPESQU S4 SE Cyperus strigosus Long-scaled Nut Sedge CYPESTR S5 SE Cypripedium acaule Pink Moccasin Flower CYPRACA S5 FO Cypripedium arietinum Ram's-head Lady's Slipper CYPRARI S3 FO Cypripedium calceolus var. parviflorum Small Yellow Lady's Slipper CYPRCAP S4S5 FO Cypripedium calceolus var. pubescens Large Yellow Lady's Slipper CYPRCAB S5 FO Cypripedium candidum Small White Lady's Slipper CYPRCAN S1 FO Cypripedium reginae Showy Lady's Slipper CYPRREG S4 FO Cypripedium sp Lady's Slipper Species CYPR_SP FO

Monday, March 05, 2007 Page 16 of 52 Scientific Name Common Name Code S Rank Form Cypripedium X andrewsii Andrews' Lady's Slipper CYPRAND SHB1 FO Cystopteris bulbifera Bulblet Bladder Fern CYSTBUL S5 FE Cystopteris fragilis Brittle Fern CYSTFRA S5 FE Cystopteris laurentiana Laurentian Bladder Fern CYSTLAU S2S3 FE Cystopteris protrusa Southern Bladder Fern CYSTPRO S2 FE Cystopteris sp Bladder Fern Species CYST_SP FE Cystopteris tenuis Mackay's Brittle Fern CYSTTEN S5 FE Dactylis glomerata Orchard Grass DACTGLO SE5 GR Dalea purpurea Purple Prairie Clover DALEPUR S1 FO Dalibarda repens Dewdrop DALIREP S4S5 FO Danthonia compressa Flat-stem Oat Grass DANTCOM S3 GR Danthonia sp Oat Grass Species DANT_SP GR Danthonia spicata Poverty Oat Grass DANTSPI S5 GR Daphne mezereum Daphne DAPHMEZ SE2 SH Datura stramonium Jimsonweed DATUSTR SE5 FO Daucus carota Wild Carrot DAUCCAR SE5 FO Decodon verticillatus Swamp Loosestrife DECOVER S5 FO Dennstaedtia punctilobula Hay-scented Fern DENNPUN S5 FE Silvery Spleenwort DEPAACR S4 FE Deschampsia cespitosa ssp. cespitosa Tufted Hairgrass DESCCEC S4S5 GR Deschampsia cespitosa ssp. parviflora Small-flowered Tufted Hairgrass DESCCEP SE2 GR Deschampsia flexuosa Common Hairgrass DESCFLE S5 GR Deschampsia sp Hairgrass Species DESC_SP GR Descurainia pinnata ssp. brachycarpa Pinnate Tansy-mustard DESCPIB S4 FO Descurainia sophia Flixweed DESCSOP SE5 FO Desmodium canadense Showy Tick-trefoil DESMCND S4 FO Desmodium canescens Hoary Tick-trefoil DESMCAN S2 FO Desmodium cuspidatum var. cuspidatum Large-bracted Tick-trefoil DESMCUC S3 FO Desmodium glutinosum Pointed-leaved Tick-trefoil DESMGLU S4 FO Desmodium nudiflorum Naked-flowered Tick-trefoil DESMNUD S4 FO Desmodium paniculatum var. dillenii Dillen's Tick-trefoil DESMPAD S4 FO Desmodium paniculatum var. paniculatum Panicled Tick-trefoil DESMPAP S4 FO Desmodium rotundifolium Round-leaved Tick-trefoil DESMROT S2 FO Desmodium sp Tick-trefoil Species DESM_SP FO armeria Deptford Pink DIANARM SE5 FO Dianthus barbatus Bearded Pink DIANBAR SE1 FO Dianthus deltoides Maiden Pink DIANDEL SE2 FO Dianthus plumarius Cottage Pink DIANPLU SE1 FO Dianthus sp Pink Species DIAN_SP FO Diarrhena obovata Beak Grass DIAROBO S1 GR Dicentra canadensis Squirrel-corn DICECAN S5 FO Dicentra cucullaria Dutchman's-breeches DICECUC S5 FO Dicentra sp Dicentra Species DICE_SP FO Diervilla lonicera Bush Honeysuckle DIERLON S5 SH Digitalis grandiflora Yellow Foxglove DIGIGRA SE1 FO Digitaria cognata var. cognata Fall Witch Grass DIGICOC S1 GR Digitaria ischaemum Small Crabgrass DIGIISC SE5 GR Digitaria sanguinalis Large Crabgrass DIGISAN SE5 GR Digitaria sp Crabgrass Species DIGI_SP GR

Monday, March 05, 2007 Page 17 of 52 Scientific Name Common Name Code S Rank Form Dioscorea quaternata Wild Yamroot DIOSQUA S4 VI Diphasiastrum complanatum Northern Running- DIPHCOM S5 FE Diphasiastrum digitatum Southern Running-pine DIPHDIG S5 FE Diphasiastrum sp Running-pine Species DIPH_SP FE Diphasiastrum tristachyum Ground-cedar DIPHTRI S5 FE Diplazium pycnocarpon Narrow-leaved Spleenwort DIPLPYC S4 FE muralis Sand Rocket DIPLMUR SE1 FO Wall Rocket DIPLTEN SE5 FO Dipsacus fullonum ssp. sylvestris Common Teasel DIPSFUS SE5 FO Dipsacus laciniatus Laciniate Teasel DIPSLAC SE1 FO Dirca palustris Leatherwood DIRCPAL S4? SH Disporum lanuginosum Yellow Mandarin DISPLAN S4 FO Draba arabisans Rock-cress Whitlow-grass DRABARA S4 FO Draba cana Hoary Draba DRABCAN S4 FO Draba glabella Glaucous Dabra DRABGLA S4S5 FO Draba nemorosa Wood Whitlow-grass DRABNEM S4? FO Draba reptans Carolina Whitlow-grass DRABREP S2 FO Draba sp Whitlow-grass Species DRAB_SP FO Dracocephalum parviflorum Small-flowered Dragonhead DRACPAR S5 FO Drosera anglica English Sundew DROSANG S5 FO Drosera intermedia Spatulate-leaved Sendew DROSINT S5 FO Drosera linearis Linear-leaved Sundew DROSLIN S3 FO Drosera rotundifolia Round-leaved Sundew DROSROT S5 FO Drosera sp Sundew Species DROS_SP FO Dryopteris carthusiana Spinulose Wood Fern DRYOCAR S5 FE Dryopteris clintoniana Clinton's Wood Fern DRYOCLI S4 FE Dryopteris cristata Crested Wood Fern DRYOCRI S5 FE Dryopteris filix-mas Male-fern DRYOFIL S4 FE Dryopteris goldiana Goldie's Wood Fern DRYOGOL S4 FE Dryopteris intermedia Evergreen Wood Fern DRYOINT S5 FE Dryopteris marginalis Marginal Wood Fern DRYOMAR S5 FE Dryopteris sp Wood Fern Species DRYO_SP FE Dryopteris X boottii Glandular Swamp Fern DRYOBOO SHB2 FE Dryopteris X burgessii Burgess Wood Fern DRYOBUR SHB1 FE Dryopteris X dowellii Dowell's Wood Fern DRYODOW SHB1 FE Dryopteris X triploidea Triploid Wood Fern DRYOTRI SHB4 FE Dryopteris X uliginosa Braun's Wood Fern DRYOULI SHB2? FE Duchesnea indica Indian Strawberry DUCHIND SE1 FO Dulichium arundinaceum Three-way Sedge DULIARU S5 SE Dyssodia papposa Fetid Marigold DYSSPAP SE1 FO Echinacea pallida Pale Purple Coneflower ECHIPAL S1 FO Echinacea purpurea Purple Coneflower ECHIPUR SE1 FO Echinochloa crusgalli Barnyard Grass ECHICRU SE5 GR Echinochloa microstachya Small-flowered Barnyard Grass ECHIMIC S4S5 GR Echinochloa muricata Large-flowered Barnyard Grass ECHIMUR S3? GR Echinochloa sp Barnyard Grass Species ECHI_SP GR Echinochloa walteri Walter's Barnyard Grass ECHIWAL S3 GR Echinocystis lobata Wild Cucumber ECHILOB S5 VI sphaerocephalus Common Globe-thistle ECHISPH SE4 FO

Monday, March 05, 2007 Page 18 of 52 Scientific Name Common Name Code S Rank Form Echium vulgare Viper's Bugloss ECHIVUL SE5 FO Eclipta prostrata False Daisy ECLIPRO S2 FO Elaeagnus angustifolia Russian Olive ELAEANG SE3 SH Elaeagnus umbellata Autumn Olive ELAEUMB SE3 SH Elatine minima Small Waterwort ELATMIN S4 FO Elatine triandra Long-stemmed Waterwort ELATTRI S3 FO acicularis Needle Spike-rush ELEOACI S5 SE Eleocharis compressa Flat-stem Spike-rush ELEOCOM S4 SE Eleocharis elliptica Elliptic Spike-rush ELEOELL S5 SE Eleocharis engelmannii Engelmann's Spike-rush ELEOENG S1 SE Eleocharis equisetoides Horsetail Spike-rush ELEOEQU S1 SE Eleocharis erythropoda Red-stemmed Spike-rush ELEOERY S5 SE Eleocharis geniculata Geniculate Spike-rush ELEOGEN S1 SE Eleocharis intermedia Matted Spike-rush ELEOINT S4 SE Eleocharis nitida Quill Spike-rush ELEONIT S2 SE Eleocharis obtusa Blunt Spike-rush ELEOOBT S5 SE Eleocharis olivacea Bright-green Spike-rush ELEOOLI S4 SE Eleocharis ovata Ovate Spike-rush ELEOOVA S5 SE Eleocharis pauciflora Few-flowered Spike-rush ELEOPAU S5 SE Eleocharis quadrangulata Four-angled Spike-rush ELEOQUA S1 SE Eleocharis robbinsii Robbins' Spike-rush ELEOROB S4 SE Eleocharis rostellata Beaked Spike-rush ELEOROS S3 SE Eleocharis smallii Small's Spike-rush ELEOSMA S5 SE Eleocharis sp Spike-rush Species ELEO_SP SE Eleusine indica Goose Grass ELEUIND SE3 GR Ellisia nyctelea Waterpod ELLINYC SE1 FO Elodea canadensis Canada Waterweed ELODCAN S5 FO Elodea nuttallii Western Elodea ELODNUT S3 FO Elodea sp Waterweed Species ELOD_SP FO Elymus canadensis Canada Wild Rye ELYMCAN S4S5 GR Elymus elongatus ssp. ponticus Elongated Wild Rye ELYMELP SE3 GR Elymus hystrix Bottlebrush Grass ELYMHYS S5 GR Elymus lanceolatus ssp. psammophilus Great Lakes Wheat Grass ELYMLAP S3 GR Elymus repens Quack Grass ELYMREP SE5 GR Elymus riparius Riverbank Wild Rye ELYMRIP S4? GR Elymus smithii Western Wheat Grass ELYMSMI S1? GR Elymus sp Wild Rye Species ELYM_SP GR Elymus trachycaulus ssp. trachycaulus Slender Wheat Grass ELYMTRT S5? GR Elymus villosus Downy Wild Rye ELYMVIL S4 GR Elymus virginicus var. virginicus Virginia Wild Rye ELYMVIV S5 GR Elymus wiegandii Broad-leaved Wild Rye ELYMWIE S4 GR Enemion biternatum False Rue Anemone ENEMBIT S2 FO Epifagus virginiana Beechdrops EPIFVIR S5 FO Epigaea repens Trailing Arbutus EPIGREP S5 SH Epilobium angustifolium Fireweed EPILANG S5 FO Epilobium ciliatum ssp. ciliatum American Willow-herb EPILCIC S5 FO Epilobium ciliatum ssp. glandulosum Northern Willow-herb EPILCIG SU FO Epilobium coloratum Purple-leaved Willow-herb EPILCOL S5 FO Epilobium hirsutum Hairy Willow-herb EPILHIR SE5 FO

Monday, March 05, 2007 Page 19 of 52 Scientific Name Common Name Code S Rank Form Epilobium leptophyllum Narrow-leaved Willow-herb EPILLEP S5 FO Epilobium palustre Marsh Willow-herb EPILPAL S5 FO Epilobium parviflorum Small-flowered Willow-herb EPILPAR SE4 FO Epilobium sp Willow-herb Species EPIL_SP FO Epilobium strictum Downy Willow-herb EPILSTR S5 FO Epipactis helleborine Helleborine EPIPHEL SE5 FO arvense Field Horsetail EQUIARV S5 FE Equisetum fluviatile Water Horsetail EQUIFLU S5 FE Equisetum hyemale ssp. affine Scouring Rush EQUIHYA S5 FE Equisetum laevigatum Smooth Scouring Rush EQUILAE S4 FE Equisetum palustre Marsh Horsetail EQUIPAL S5 FE Equisetum pratense Meadow Horsetail EQUIPRA S5 FE Equisetum scirpoides Dwarf Scouring Rush EQUISCI S5 FE Equisetum sp Horsetail Species EQUI_SP FE Equisetum sylvaticum Woodland Horsetail EQUISYL S5 FE Equisetum variegatum ssp. variegatum Variegated Horsetail EQUIVAV S5 FE Equisetum X ferrissii Joilet Horsetail EQUEFER SHB3 FE Equisetum X litorale Shore Horsetail EQUILIT SHB2? FE Equisetum X mackaii Mack's Horsetail EQUIMAC SHB3 FE Equisetum X nelsonii Nelson's Horsetail EQUINEL SHB2? FE Eragrostis capillaris Lace-grass ERAGCAP S1 GR Eragrostis cilianensis Stink Grass ERAGCIL SE5 GR Eragrostis frankii Sandbar Love Grass ERAGFRA S4 GR Eragrostis hypnoides Creeping Love Grass ERAGHYP S4 GR Eragrostis minor Little Love Grass ERAGMIN SE5 GR Eragrostis pectinacea var. pectinacea Small Love Grass ERAGPEP S5 GR Eragrostis pilosa Indian Love Grass ERAGPIL SE1 GR Eragrostis sp Love Grass Species ERAG_SP GR Eragrostis spectabilis Purple Love Grass ERAGSPE S2 GR Erechtites hieracifolia Pilewort ERECHIE S5 FO Erigenia bulbosa Harbinger-of-spring ERIGBUL S3 FO Erigeron annuus Daisy Fleabane ERIGANN S5 FO Erigeron hyssopifolius Hyssop-leaved Fleabane ERIGHYS S5 FO Erigeron philadelphicus ssp. philadelphicus Philadelphia Fleabane ERIGPHP S5 FO Erigeron pulchellus Robin's Plantain ERIGPUL S5 FO Erigeron sp Fleabane Species ERIG_SP FO Erigeron strigosus Lesser Daisy Fleabane ERIGSTR S5 FO Eriocaulon aquaticum Pipewort ERIOAQU S5 FO Eriophorum gracile Slender Cottongrass ERIOGRA S5 SE Eriophorum sp Cottongrass Species ERIO_SP SE Eriophorum vaginatum ssp. spissum Sheathed Cottongrass ERIOVAS S5 SE Eriophorum virginicum Virginia Cottongrass ERIOVIR S5 SE Eriophorum viridi-carinatum Thin-leaved Cottongrass ERIOVRC S5 SE Erodium cicutarium Redstem Filaree ERODCIC SE3 FO Erophila verna Spring Whitlow-grass EROPVER SE4 FO Eruca vesicaria Purple-vein Rocket ERUCVES SE1 FO Erucastrum gallicum French Rocket ERUCGAL SE5 FO planum Flat Rattlesnake-master ERYNPLA SE1 FO Erysimum cheiranthoides ssp. cheiranthoides Wormseed Mustard ERYSCHC SE5 FO

Monday, March 05, 2007 Page 20 of 52 Scientific Name Common Name Code S Rank Form Erysimum hieraciifolium Hawkweed-leaved Mustard ERYSHIE SE5 FO Erysimum inconspicuum Small-flowered Prairie-rocket ERYSINC S4 FO Erysimum repandum Spreading Wallflower ERYSREP SE2 FO Erysimum sp Erysimum Species ERYS_SP FO Erythronium albidum White Trout Lily ERYTALB S4 FO Erythronium americanum ssp. americanum Yellow Trout Lily ERYTAMA S5 FO Erythronium sp Trout Lily Species ERYT_SP FO Euonymus alata Winged Euonymus EUONALA SE2 SH Euonymus atropurpurea var. atropurpurea Burning Bush EUONATA S3 SH Euonymus europaea European Euonymus EUONEUR SE2 SH Euonymus fortunei Winter Creeper EUONFOR SE1 SH Euonymus obovata Running Strawberry-bush EUONOBO S5 SH Euonymus sp Euonymus Species EUON_SP SH Eupatorium altissimum Tall Boneset EUPAALT S1 FO Eupatorium coelestinum Mistflower EUPACOE SE1 FO Eupatorium maculatum ssp. maculatum Spotted Joe-pye-weed EUPAMAM S5 FO Eupatorium perfoliatum Common Boneset EUPAPER S5 FO Eupatorium purpureum var. purpureum Purple Joe-pye-weed EUPAPUP S3 FO Eupatorium rugosum White Snakeroot EUPARUG S5 FO Eupatorium serotinum Late-flowering Joe-pye-weed EUPASER SE1 FO Eupatorium sp Joe-pye-weed Species EUPA_SP FO Euphorbia commutata Wood Spurge EUPHCOM S1 FO Euphorbia corollata Blooming Spurge EUPHCOR S4 FO Euphorbia cyparissias Cypress Spurge EUPHCYP SE5 FO Euphorbia dentata Toothed Spurge EUPHDEN SE4 FO Euphorbia esula Hungarian Spurge EUPHESU SE5 FO Euphorbia exigua Dwarf Spurge EUPHEXI SE1 FO Euphorbia helioscopia Sun Spurge EUPHHEL SE3 FO Euphorbia lathyris Caper Spurge EUPHLAT SE1 FO Euphorbia lucida Shiny Spurge EUPHLUC SE1 FO Euphorbia marginata Ghostweed EUPHMAR SE2 FO Euphorbia obtusata Blunt Spurge EUPHOBT S1 FO Euphorbia peplus Petty Spurge EUPHPEP SE4 FO Euphorbia platyphyllos Broad-leaved Spurge EUPHPLA SE4 FO Euphorbia sp Spurge Species EUPH_SP FO Euphrasia stricta European Eyebright EUPHSTR SE4? FO Euthamia graminifolia Grass-leaved Goldenrod EUTHGRA S5 FO Euthamia gymnospermoides Viscid Grass-leaved Goldenrod EUTHGYM S1 FO Fagopyrum esculentum Buckwheat FAGOESC SE3 FO American Beech FAGUGRA S4 TR Fern sp Fern Species FERN_SP FE arundinacea Tall Fescue FESTARU SE5 GR Festuca filiformis Hair Fescue FESTFIL SE2 GR Festuca occidentalis Western Fescue FESTOCC S4? GR Festuca pratensis Meadow Fescue FESTPRA SE5 GR Festuca rubra Red Fescue FESTRUB S5 GR Festuca saximontana Rocky Mountain Fescue FESTSAX S4 GR Festuca sp Fescue Species FEST_SP GR Festuca subverticillata Nodding Fescue FESTSUB S4 GR

Monday, March 05, 2007 Page 21 of 52 Scientific Name Common Name Code S Rank Form Festuca trachyphylla Hard Fescue FESTTRA SE4 GR Fimbristylis autumnalis Low Fimbristylis FIMBAUT S4 SE Fimbristylis puberula var. puberula Hairy Fimbristylis FIMBPUP S1 SE Floerkea proserpinacoides False Mermaid FLOEPRO S4 FO Foeniculum vulgare Fennel FOENVUL SE3? FO Forb sp Forb Species FORB_SP FO Forsythia viridissima Forsythia FORSVIR SE2 SH Fragaria sp Strawberry Species FRAG_SP FO Fragaria vesca ssp. americana Woodland Strawberry FRAGVEA S5 FO Fragaria virginiana ssp. virginiana Common Strawberry FRAGVIV S5 FO Frasera caroliniensis American Columbo FRASCAR S2 FO Fraxinus americana White Ash FRAXAME S5 TR Fraxinus excelsior European Ash FRAXEXC SE2 TR Fraxinus nigra Black Ash FRAXNIG S5 TR Fraxinus pennsylvanica Red Ash FRAXPEN S5 TR Fraxinus profunda Pumpkin Ash FRAXPRO S2 TR Fraxinus quadrangulata Blue Ash FRAXQUA S3 TR Fraxinus sp Ash Species FRAX_SP TR Froelichia gracilis Slender Froelichia FROEGRA SE1 FO Fumaria officinalis Fumitory FUMAOFF SE3 FO Gaillardia aristata Blanket-flower GAILARI SE1 FO Gaillardia pulchella Showy Gaillardia GAILPUL SE1 FO Galearis spectabilis Showy Orchis GALISPC S4 FO sp Hempnettle Species GALE_SP FO Galeopsis speciosa Large-flowered Hempnettle GALESPE SE1 FO Ironwort GALETET SE5 FO parviflora Potato-weed GALIPAR SE FO Quick Weed GALIQUA SE5 FO aparine Cleavers GALIAPA S5 FO Galium asprellum Rough Bedstraw GALIASP S5 FO Galium boreale Northern Bedstraw GALIBOR S5 FO Galium brevipes Short-stalked Bedstraw GALIBRE S2? FO Galium circaezans White Wild Licorice GALICIR S5 FO Galium concinnum Shining Bedstraw GALICON S1 FO Galium labradoricum Labrador Marsh Bedstraw GALILAB S5 FO Spear Wild Licorice GALILAN S5 FO Galium mollugo Smooth Bedstraw GALIMOL SE5 FO Galium obtusum Blunt-leaved Bedstraw GALIOBT S4S5 FO Galium palustre Marsh Bedstraw GALIPAL S5 FO Galium pilosum var. pilosum Hairy Bedstraw GALIPIP S3 FO Galium sp Bedstraw Species GALI_SP FO Galium tinctorium Stiff Marsh Bedstraw GALITIN S5 FO Galium trifidum ssp. trifidum Small Bedstraw GALITRT S5 FO Galium triflorum Fragrant Bedstraw GALITRI S5 FO Galium verum Yellow Bedstraw GALIVER SE4SE5 FO Gaultheria hispidula Creeping Snowberry GAULHIS S5 SH Gaultheria procumbens Wintergreen GAULPRO S5 SH Gaultheria sp Gaultheria Species GAUL_SP SH Gaura biennis Biennial Gaura GAURBIE S2 FO

Monday, March 05, 2007 Page 22 of 52 Scientific Name Common Name Code S Rank Form Gaura coccinea Scarlet Gaura GAURCOC SE1 FO Gaura longiflora Common Gaura GAURLON SE1 FO Gaylussacia baccata Black Huckleberry GAYLBAC S4 SH Gentiana andrewsii Closed Gentian GENTAND S4 FO Gentiana flavida Yellowish Gentian GENTFLA S1 FO Gentiana linearis Narrow-leaved Gentian GENTLIN S4 FO Gentiana rubricaulis Purple-stem Gentian GENTRUB S4 FO Gentiana sp Gentian Species GENT_SP FO Gentianella quinquefolia ssp. occidentalis Stiff Gentian GENTQUO S2 FO crinita Fringed Gentian GENTCRI S5 FO Gentianopsis virgata Small Fringed Gentian GENTVIR S4 FO Geocaulon lividum Northern Commandra GEOCLIV S5 FO bicknellii Bicknell's Geranium GERABIC S4 FO Geranium carolinianum var. confertiflorum Carolina Crane's-bill GERACAC S4 FO Geranium columbinum Long-stalked Crane's-bill GERACOL SE1 FO Geranium maculatum Spotted Crane's-bill GERAMAC S5 FO Geranium molle Dove's-foot Crane's-bill GERAMOL SE1 FO Geranium pusillum Small-flowered Crane's-bill GERAPUS SE4 FO Geranium pyrenaicum Hedgerow Crane's-bill GERAPYR SE1 FO Geranium robertianum Herb Robert GERAROB SE5 FO Geranium sanguineum Bloody Crane's-bill GERASAN SE1 FO Geranium sp Crane's-bill Species GERA_SP FO Geum aleppicum Yellow Avens GEUMALE S5 FO Geum canadense White Avens GEUMCAN S5 FO Geum laciniatum Rough Avens GEUMLAC S4 FO Geum rivale Water Avens GEUMRIV S5 FO Geum sp Avens Species GEUM_SP FO Geum triflorum Prairie Smoke GEUMTRI S4 FO Geum urbanum Wood Avens GEUMURB SE2 FO Geum vernum Spring Avens GEUMVER S3 FO Geum virginianum Pale Avens GEUMVIR S1 FO Glechoma hederacea Ground Ivy GLECHED SE5 FO Gleditsia triacanthos Honey Locust GLEDTRI S2 TR Glyceria borealis Northern Glyceria GLYCBOR S5 GR Glyceria canadensis Rattlesnake Glyceria GLYCCAN S4S5 GR Glyceria grandis American Glyceria GLYCGRA S4S5 GR Glyceria maxima Tall Glyceria GLYCMAI SE4 GR Glyceria septentrionalis Eastern Glyceria GLYCSEP S4 GR Glyceria sp Mannagrass Species GLYC_SP GR Glyceria striata Fowl Glyceria GLYCSTR S4S5 GR Glycine max Soybean GLYCMAX SE2 FO Glycyrrhiza lepidota Wild Licorice GLYCLEP S3 FO Gnaphalium macounii Northern Cudweed GNAPMAC S5 FO Gnaphalium obtusifolium Fragrant Cudweed GNAPOBT S5 FO Gnaphalium uliginosum Marsh Cudweed GNAPULI SE5 FO Goodyera oblongifolia Menzies Rattlesnake Plantain GOODOBL S4 FO Goodyera pubescens Downy Rattlesnake Plantain GOODPUB S4 FO Goodyera repens Dwarf Rattlesnake Plantain GOODREP S5 FO Goodyera sp Rattlesnake Plantain Species GOOD_SP FO

Monday, March 05, 2007 Page 23 of 52 Scientific Name Common Name Code S Rank Form Goodyera tesselata Checkered Rattlesnake Plantain GOODTES S4S5 FO Grass sp Grass Species GRAS_SP GR Gratiola aurea Golden Hedge-hyssop GRATAUR S4? FO Gratiola neglecta Clammy Hedge-hyssop GRATNEG S4 FO Grindelia squarrosa Curly Cup Gumweed GRINSQU SE3 FO Gymnocarpium dryopteris Common Oak Fern GYMNDRD S5 FE Gymnocarpium robertianum Limestone Oak Fern GYMNROB S2 FE Gymnocladus dioicus Coffee-tree GYMNDIO S2 TR Gypsophila elegans Annual Baby's-breath GYPSELE SE1 FO Gypsophila muralis Low Baby's-breath GYPSMUR SE1 FO Gypsophila paniculata Tall Baby's-breath GYPSPAN SE3 FO Hackelia deflexa Spurred Stickseed HACKDEF S5 FO Hackelia virginiana Virginia Stickseed HACKVIR S5 FO Halenia deflexa ssp. deflexa Spurred Gentian HALEDED S5 FO Hamamelis virginiana Witch-hazel HAMAVIR S5 SH Hedeoma hispidum Rough Pennyroyal HEDEHIS S4 FO Hedeoma pulegioides American Pennyroyal HEDEPUL S4 FO Hedyotis caerulea Bluets HEDYCAE SH FO Hedyotis longifolia Long-leaved Bluets HEDYLON S4? FO Helenium autumnale Sneezeweed HELEAUT S5 FO Helenium flexuosum Purple-headed Sneezeweed HELEFLE SE2? FO Helianthemum bicknellii Bicknell's Frostweed HELIBIC S4 FO Helianthemum canadense Frost-wort HELICAN S4 FO Helianthus annuus ssp. annuus Common Sunflower HELIANA SE FO Helianthus decapetalus Thin-leaved Sunflower HELIDEC S5 FO Helianthus divaricatus Rough Woodland Sunflower HELIDIV S5 FO Helianthus giganteus Tall Wild Sunflower HELIGIG S5 FO Helianthus grosseserratus Saw-toothed Sunflower HELIGRO SE1? FO Helianthus hirsutus Stiff-haired Sunflower HELIHIR SE FO Helianthus mollis Hairy Sunflower HELIMOL SE1 FO Helianthus pauciflorus ssp. pauciflorus Stiff Sunflower HELIPAP SE FO Helianthus pauciflorus ssp. subrhomboideus Prairie Sunflower HELIPAS S4? FO Helianthus petiolaris ssp. petiolaris Plains Sunflower HELIPEP SE1 FO Helianthus sp Sunflower Species HELI_SP FO Helianthus strumosus Pale-leaved Wood Sunflower HELISTR S5 FO Helianthus tuberosus Jerusalem Artichoke HELITUB S5 FO Heliopsis helianthoides Sweet Ox-eye HELIHEL S5 FO Hemerocallis fulva Tawny Day-lily HEMEFUL SE5 FO Hemerocallis lilioasphodelus Yellow Day-lily HEMELIL SE4 FO Heracleum lanatum Cow-parsnip HERALAN S5 FO Herniaria glabra Smooth Rupturewort HERNGLA SE1 FO Hesperis matronalis Dame's Rocket HESPMAT SE5 FO Heteranthera dubia Water Star-grass HETEDUB S5 FO Heuchera americana var. americana Rock-geranium HEUCAMA S2 FO Hibiscus moscheutos ssp. moscheutos Swamp Rose-mallow HIBIMOM S3 FO Hibiscus trionum Flower-of-an-hour HIBITRI SE4 FO Hieracium aurantiacum Orange Hawkweed HIERAUR SE5 FO Hieracium caespitosum ssp. caespitosum Field Hawkweed HIERCAC SE5 FO Hieracium gronovii Hairy Hawkweed HIERGRO S4 FO

Monday, March 05, 2007 Page 24 of 52 Scientific Name Common Name Code S Rank Form Hieracium kalmii Kalm's Hawkweed HIERKAL SU FO Hieracium lachenalii Showy Hawkweed HIERLAC SE2? FO Hieracium murorum Golden Lungwort HIERMUR SE1 FO Hieracium paniculatum Panicled Hawkweed HIERPAN S2 FO Hieracium pilosella Mouse-ear Hawkweed HIERPLO SE5 FO Hieracium piloselloides Glaucous King Devil HIERPIL SE5 FO Hieracium scabriusculum Northern Hawkweed HIERSCA SE FO Hieracium scabrum Rough Hawkweed HIERSCB S4 FO Hieracium sp Hawkweed Species HIER_SP FO Hieracium umbellatum Narrow-leaved Hawkweed HIERUMB SE FO Hieracium venosum Rattlesnake Weed HIERVEN S2 FO Hieracium X floribundum King Devil Hawkweed HIERFLO SHBE? FO Hierochloe odorata Sweet Grass HIERODO S4 GR Hippuris vulgaris Mare's-tail HIPPVUL S5 FO Holcus lanatus Velvet Grass HOLCLAN SE2 GR Holosteum umbellatum Umbelled Jagged Chickweed HOLOUMB SE2 FO Hordeum jubatum ssp. jubatum Squirrel-tail Grass HORDJUJ SE5 GR Hordeum vulgare Barley HORDVUL SE2 GR Hornwort sp Hornwort Species HORN_SP HR Hudsonia tomentosa Sand Heather HUDSTOM S2S3 SH Humulus japonicus Japanese Hop HUMUJAP SE3 VI Humulus lupulus var. lupulus European Common Hop HUMULUL S4 VI Huperzia lucidula Shining Clubmoss HUPELUC S5 FE Hybanthus concolor Green Violet HYBACON S2 FO Hydrastis canadensis Golden Seal HYDRCAN S2 FO Hydrocharis morsus-ranae European Frog-bit HYDRMOR SE5 FO Hydrocotyle americana Marsh Pennywort HYDRAME S5 FO Hydrophyllum appendiculatum Appendaged Water-leaf HYDRAPP S2 FO Hydrophyllum canadense Canada Waterleaf HYDRCND S4 FO Hydrophyllum sp Water-leaf Species HYDR_SP FO Hydrophyllum virginianum Virginia Water-leaf HYDRVIR S5 FO Hymenoxys herbacea Lakeside Daisy HYMEHER S2 FO Hyoscyamus niger Hog's-bean HYOSNIG SE1 FO Hypericum ascyron Great St. John's-wort HYPEASC S4 FO Hypericum canadense Canadian St. John's-wort HYPECAN S4? FO Hypericum ellipticum Pale St. John's-wort HYPEELL S5 FO Hypericum gentianoides False St. John's-wort HYPEGEN S1 FO Hypericum kalmianum Kalm's St. John's-wort HYPEKAL S4 SH Hypericum majus Larger Canadian St. John's-wort HYPEMAJ S5 FO Hypericum mutilum ssp. boreale Northern St. John's-wort HYPEMUB S5 FO Hypericum mutilum ssp. mutilum Dwarf St. John's-wort HYPEMUM S5 FO Hypericum perforatum Common St. John's-wort HYPEPER SE5 FO Hypericum prolificum Shrubby St. John's-wort HYPEPRO S2 SH Hypericum punctatum Spotted St. John's-wort HYPEPUN S5 FO Hypericum sp St. John's-wort Species HYPE_SP FO Hypericum sphaerocarpum Round-fruited St. John's-wort HYPESPH S1 FO Hypoxis hirsuta Yellow Star-grass HYPOHIR S3 FO Hyssopus officinalis Hyssop HYSSOFF SE2 FO Iberis umbellata Globe Candytuft IBERUMB SE1 FO

Monday, March 05, 2007 Page 25 of 52 Scientific Name Common Name Code S Rank Form Ilex verticillata Winterberry ILEXVER S5 SH Impatiens capensis Spotted Jewel-weed IMPACAP S5 FO Impatiens glandulifera Pink Jewel-weed IMPAGLA SE4 FO Impatiens pallida Pale Jewel-weed IMPAPAL S5 FO Impatiens sp Jewel-weed Species IMPA_SP FO Inula helenium Elecampane INULHEL SE5 FO Ipomoea hederacea Ivy-leaved Morning-glory IPOMHED SE1 VI Ipomoea pandurata Wild Potato-vine IPOMPAN S1 VI Ipomoea purpurea Tall Morning-glory IPOMPUR SE2 VI Ipomopsis rubra Standing Cypress IPOMRUB SE1 FO Iris brevicaulis Leafy Blue-flag IRISBRE S1 FO Iris germanica German Iris IRISGER SE1 FO Iris lacustris Dwarf Lake Iris IRISLAC S3 FO Iris pseudacorus Yellow Iris IRISPSE SE3 FO Iris sp Iris Species IRIS_SP FO Iris versicolor Northern Blue-flag IRISVER S5 FO Iris virginica Southern Blue-flag IRISVIR S5 FO Isoetes echinospora Spiny-spored Quillwort ISOEECH S5 FE Isoetes engelmannii Engelmann's Quillwort ISOEENG S1 FE Isoetes lacustris Lake Quillwort ISOELAC S4 FE Isoetes riparia Riverbank Quillwort ISOERIP S3 FE Isoetes sp Quillwort Species ISOE_SP FE Isotria medeoloides Small Whorled Pogonia ISOTMED S1 FO Isotria sp Whorled Pogonia Species ISOT_SP FO Isotria verticillata Large Whorled Pogonia ISOTVER S1 FO Iva xanthifolia False Ragweed IVA_XAN SE1 FO Jeffersonia diphylla Twinleaf JEFFDIP S4 FO Juglans cinerea Butternut JUGLCIN S3? TR Juglans nigra Black Walnut JUGLNIG S4 TR Juglans regia Persian Walnut JUGLREG SE1 TR Juglans sp Walnut Species JUGL_SP TR Juncus acuminatus Sharp-fruited Rush JUNCACU S3 RU Juncus alpinoarticulatus Alpine Rush JUNCALP S5 RU Juncus articulatus Jointed Rush JUNCART S5 RU Juncus balticus Wire Rush JUNCBAL S5 RU Juncus biflorus Two-flowered Rush JUNCBIF S1 RU Juncus brachycarpus Short-fruited Rush JUNCBRA S1 RU Juncus brachycephalus Small-headed Rush JUNCBCE S4S5 RU Juncus brevicaudatus Short-tailed Rush JUNCBRE S5 RU Juncus bufonius Toad Rush JUNCBUF S5 RU Juncus canadensis Canada Rush JUNCCAN S5 RU Juncus compressus Flat-stem Rush JUNCCOM SE5 RU Juncus dudleyi Dudley's Rush JUNCDUD S5 RU Juncus effusus ssp. solutus Soft Rush JUNCEFS S5 RU Juncus filiformis Filiform Rush JUNCFIL S4S5 RU Juncus gerardii Blackgrass Rush JUNCGER SE3 RU Juncus greenei Green's Rush JUNCGRE S3 RU Juncus inflexus Hard Rush JUNCINF SE1 RU Juncus longistylis Long-styled Rush JUNCLON S3 RU

Monday, March 05, 2007 Page 26 of 52 Scientific Name Common Name Code S Rank Form Juncus marginatus Grass-leaved Rush JUNCMAR S2 RU Juncus militaris Bayonet Rush JUNCMIL S3S4 RU Juncus nodosus Knotted Rush JUNCNOD S5 RU Juncus pelocarpus Brown-fruited Rush JUNCPEL S5 RU Juncus pylaei Rush JUNCPYL S5? RU Juncus secundus Secund Rush JUNCSEC S2 RU Juncus sp Rush Species JUNC_SP RU Juncus subtilis Creeping Rush JUNCSUB S3 RU Juncus tenuis Path Rush JUNCTEN S5 RU Juncus torreyi Torrey's Rush JUNCTOR S5 RU Juncus vaseyi Vasey's Rush JUNCVAS S3 RU Juniperus communis Common Juniper JUNICOM S5 SH Juniperus horizontalis Creeping Juniper JUNIHOR S5 SH Juniperus sp Juniper Species JUNI_SP SH Eastern Red Cedar JUNIVIR S5 TR Justicia americana Water Willow JUSTAME S1 FO Kalmia angustifolia Sheep Laurel KALMANG S5 SH Kalmia polifolia Bog Laurel KALMPOL S5 SH Kalmia sp Laurel Species KALM_SP SH Knautia arvensis Bluebuttons KNAUARV SE1 FO Kochia scoparia Summer Cypress KOCHSCO SE5 FO Koeleria macrantha Junegrass KOELMAC S3 GR Krigia biflora var. biflora Two-flowered Cynthia KRIGBIB S2 FO Lactuca biennis Tall Blue Lettuce LACTBIE S5 FO Lactuca canadensis Tall Lettuce LACTCAN S5 FO Lactuca floridana var. floridana False Lettuce LACTFLF S2 FO Lactuca hirsuta Hairy Wood Lettuce LACTHIR S4? FO Lactuca saligna Willow-leaved Lettuce LACTSAL SE1 FO Lactuca sativa Garden Lettuce LACTSAT SE1 FO Lactuca serriola Prickly Lettuce LACTSER SE5 FO Lactuca sp Lettuce Species LACT_SP FO Lamium album White Dead-nettle LAMIALB SE1 FO Lamium amplexicaule Henbit Dead-nettle LAMIAMP SE3 FO Lamium purpureum Purple Dead-nettle LAMIPUR SE3 FO Laportea canadensis Wood Nettle LAPOCAN S5 FO Lappula squarrosa ssp. squarrosa Two-row Stickweed LAPPSQS SE5 FO Lapsana communis Nipplewort LAPSCOM SE5 FO Larix decidua European Larch LARIDEC SE2 TR Larix laricina Tamarack LARILAR S5 TR Larix sp Larch Species LARI_SP TR Lathyrus japonicus Beach Pea LATHJAP S4 VI Lathyrus latifolius Everlasting Pea LATHLAT SE4 VI Lathyrus ochroleucus Pale Vetchling LATHOCH S4 VI Lathyrus odoratus Sweet Pea LATHODO SE1 VI Lathyrus palustris Marsh Vetchling LATHPAL S5 VI Lathyrus pratensis Yellow Vetchling LATHPRA SE2 VI Lathyrus sp Vetchling Species LATH_SP VI Lathyrus sylvestris Wood Pea LATHSYL SE3 VI Lathyrus tuberosus Tuberous Vetchling LATHTUB SE3 VI

Monday, March 05, 2007 Page 27 of 52 Scientific Name Common Name Code S Rank Form Lathyrus venosus Veiny Pea LATHVEN S4 VI Lechea intermedia Savanna Pinweed LECHINT S4 FO Lechea pulchella var. pulchella Pretty Pinweed LECHPUP S1 FO Lechea sp Pinweed Species LECH_SP FO Lechea villosa Hairy Pinweed LECHVIL S3 FO Ledum groenlandicum Labrador Tea LEDUGRO S5 SH Leersia oryzoides Rice Cut Grass LEERORY S5 GR Leersia sp Cut Grass Species LEER_SP GR Leersia virginica White Grass LEERVIR S4 GR Lemna minor Lesser Duckweed LEMNMIN S5 FO Lemna sp Duckweed Species LEMN_SP FO Lemna trisulca Star Duckweed LEMNTRI S5 FO Leontodon autumnalis ssp. autumnalis Fall Hawkbit LEONAUA SE5 FO Leontodon taraxacoides ssp. taraxacoides Rough Hawkbit LEONTAT SE1 FO Leonurus cardiaca ssp. cardiaca Motherwort LEONCAC SE5 FO Lepidium campestre Field Cress LEPICAM SE5 FO Lepidium densiflorum Common Pepper-grass LEPIDEN SE5 FO Lepidium perfoliatum Clasping Pepper-grass LEPIPER SE1 FO Lepidium ruderale Narrow-leaved Pepper-grass LEPIRUD SE3 FO Lepidium sativum Garden Cress LEPISAT SE2 FO Lepidium sp Pepper-grass Species LEPI_SP FO Lepidium virginicum Virginia Pepper-grass LEPIVIR S5 FO Leptochloa acuminata Sprangletop LEPTACU SE3 GR Lespedeza capitata Round-headed Bush-clover LESPCAP S4 FO Lespedeza cuneata Chinese Bush-clover LESPCUN SE1 SH Lespedeza hirta Hairy Bush-clover LESPHIR S4 FO Lespedeza intermedia Wand-like Bush-clover LESPINT S4 FO Lespedeza sp Bush-clover Species LESP_SP FO Lespedeza thunbergii Thunberg's Bush-clover LESPTHU SE1 SH Lespedeza violacea Violet Bush-clover LESPVIO S1 FO Lespedeza virginica Slender Bush-clover LESPVIR S1 FO Leucophysalis grandiflora Large White Ground-cherry LEUCGRA S3? FO Leucospora multifida Much-cleft Conobea LEUCMUL S1 FO Levisticum officinale Lovage LEVIOFF SE1 FO Leymus arenarius Lyme Grass LEYMARE SE1 GR Liatris aspera var. intermedia Rough Blazing Star LIATASI S2 FO Liatris cylindracea Cylindric Blazing Star LIATCYL S3 FO Liatris sp Blazing Star Species LIAT_SP FO Liatris spicata Spiked Blazing Star LIATSPI S2 FO Lichen sp Lichen Species LICH_SP LC Ligustrum ovalifolium Oval-leaved Privet LIGUOVA SE1 SH Ligustrum vulgare Common Privet LIGUVUL SE5 SH Lilium lancifolium Tiger Lily LILILAN SE1 FO Lilium michiganense Lily LILIMIC S5 FO Lilium philadelphicum Wood Lily LILIPHI S5 FO Lilium sp Lily Species LILI_SP FO Linaria canadensis Blue Toadflax LINACAN S1 FO Linaria genistifolia ssp. dalmatica Toadflax LINAGED SE3 FO Linaria sp Toadflax Species LINA_SP FO

Monday, March 05, 2007 Page 28 of 52 Scientific Name Common Name Code S Rank Form Linaria vulgaris Butter-and-eggs LINAVUL SE5 FO Lindera benzoin Spicebush LINDBEN S5 SH Lindernia dubia var. anagallidea Slender False Pimpernel LINDDUA S1 FO Lindernia dubia var. dubia False Pimpernel LINDDUD S4 FO borealis ssp. longiflora Twinflower LINNBOL S5 SH Linum catharticum Dwarf Flax LINUCAT SE2 FO Linum medium var. medium Stiff Yellow Flax LINUMEM S3 FO Linum medium var. texanum Small Yellow Flax LINUMET S1 FO Linum perenne Perennial Blue Flax LINUPER SE3 FO Linum sp Yellow Flax Species LINU_SP FO Linum striatum Ridged Yellow Flax LINUSTR S1 FO Linum sulcatum Grooved Yellow Flax LINUSUL S3 FO Linum usitatissimum Common Flax LINUUSI SE3 FO Linum virginianum Slender Yellow Flax LINUVIR S2 FO Liparis liliifolia Lily-leaved Twayblade LIPALIL S2 FO Liparis loeselii Loesel's Twayblade LIPALOE S4S5 FO Lipocarpha micrantha Small-flowered Lipocarpha LIPOMIC S1 SE Liriodendron tulipifera Tulip Tree LIRITUL S4 TR Listera auriculata Auricled Twayblade LISTAUR S3 FO Listera australis Southern Twayblade LISTAUS S1 FO Listera convallarioides Broad-lipped Twayblade LISTCON S4 FO Listera cordata Heart-leaved Twayblade LISTCOR S5? FO Listera sp Twayblade Species LIST_SP FO Lithospermum canescens Hoary Puccoon LITHCAN S3 FO Lithospermum caroliniense var. croceum Plains Puccoon LITHCAC S3 FO Lithospermum incisum Fringed Puccoon LITHINC S1 FO Lithospermum latifolium American Gromwell LITHLAT S3 FO Lithospermum officinale Common Gromwell LITHOFF SE5 FO Lithospermum sp Gromwell Species LITH_SP FO Littorella americana American Shore-grass LITTAME S4? FO Liverwort sp Liverwort Species LIVE_SP LV Lobelia cardinalis Cardinal Flower LOBECAR S5 FO Lobelia dortmanna Water Lobelia LOBEDOR S4? FO Lobelia inflata Indian Tobacco LOBEINF S5 FO Lobelia kalmii Kalm's Lobelia LOBEKAL S5 FO Lobelia siphilitica Great Blue Lobelia LOBESIP S5 FO Lobelia sp Lobelia Species LOBE_SP FO Lobelia spicata Pale-spiked Lobelia LOBESPI S4 FO Lobularia maritima Sweet Alyssum LOBUMAR SE2 FO Logfia arvensis Filago LOGFARV SE1 FO Lolium perenne Perennial Rye Grass LOLIPER SE4 GR Lolium sp Rye Grass Species LOLI_SP GR Lonicera canadensis Fly Honeysuckle LONICAN S5 SH Lonicera caprifolium European Honeysuckle LONICAP SE1 VW Lonicera dioica Glaucous Honeysuckle LONIDIO S5 VW Lonicera hirsuta Hairy Honeysuckle LONIHIR S5 VW Lonicera japonica Japanese Honeysuckle LONIJAP SE2 VW Lonicera maackii Amur Honeysuckle LONIMAA SE2 SH Lonicera morrowii Morrow's Honeysuckle LONIMOR SE3 SH

Monday, March 05, 2007 Page 29 of 52 Scientific Name Common Name Code S Rank Form Lonicera oblongifolia Swamp Fly Honeysuckle LONIOBL S4S5 SH Lonicera sp Honeysuckle Species LONI_SP SH Lonicera tatarica Tartarian Honeysuckle LONITAT SE5 SH Lonicera villosa Mountain Fly Honeysuckle LONIVIL S5 SH Lonicera X bella Showy Fly Honeysuckle LONIBEL SHBE2 SH Lonicera xylosteum European Fly Honeysuckle LONIXYL SE2 SH Lotus corniculatus Bird's-foot Trefoil LOTUCOR SE5 FO Ludwigia alternifolia Seedbox LUDWALT S1 FO Ludwigia palustris Marsh Purslane LUDWPAL S5 FO Ludwigia polycarpa Many-fruited Ludwigia LUDWPOL S2 FO Ludwigia sp Seedbox Species LUDW_SP FO Lunaria annua Annual Honesty LUNAANN SE2 FO Lupinus perennis ssp. perennis Wild Lupine LUPIPEP S3 FO Lupinus polyphyllus Many-leaved Lupine LUPIPOL SE4 FO Luzula acuminata Hairy Wood Rush LUZUACU S5 RU Luzula multiflora ssp. multiflora Common Woodrush LUZUMUM S5 RU Luzula sp Woodrush Species LUZU_SP RU Lychnis chalcedonica Scarlet Cockle LYCHCHA SE1 FO Lychnis coronaria Mullein Pink LYCHCOR SE3 FO Lycopodiella inundata Northern Bog Clubmoss LYCOIND S5 FE Lycopodium annotinum Bristly Clubmoss LYCOANN S5 FE Lycopodium clavatum Common Clubmoss LYCOCLA S5 FE Lycopodium dendroideum Prickly Tree Clubmoss LYCODEN S5 FE Lycopodium hickeyi Hickey's Tree Clubmoss LYCOHIC S4 FE Lycopodium lagopus One-cone Clubmoss LYCOLAG S4? FE Lycopodium obscurum Ground-pine LYCOOBS S4 FE Lycopodium sp Clubmoss Species LYCO_SP FE Lycopus americanus Cut-leaved Water-horehound LYCOAME S5 FO Lycopus asper Western Water-horehound LYCOASP S2 FO Lycopus europaeus European Water-horehound LYCOEUR SE5 FO Lycopus rubellus Stalked Water-horehound LYCORUB S2 FO Lycopus sp Water-horehound Species LYCP_SP FO Lycopus uniflorus Northern Water-horehound LYCOUNI S5 FO Lycopus virginicus Virginia Water-horehound LYCOVIR S2 FO Lysimachia ciliata Fringed Loosestrife LYSICIL S5 FO Lysimachia nummularia Moneywort LYSINUM SE5 FO Lysimachia quadriflora Linear-leaved Loosestrife LYSIQUF S4 FO Lysimachia quadrifolia Whorled Loosestrife LYSIQUA S4 FO Lysimachia sp Loosestrife Species LYSI_SP FO Lysimachia terrestris Swamp Candles LYSITER S5 FO Lysimachia thyrsiflora Tufted Loosestrife LYSITHY S5 FO Lysimachia vulgaris Garden Loosestrife LYSIVUL SE3 FO Lythrum alatum Winged Lythrum LYTHALA S3 FO Lythrum salicaria Purple Loosestrife LYTHSAL SE5 FO Maclura pomifera Osage-orange MACLPOM SE2 SH Magnolia acuminata Cucumber Magnolia MAGNACU S2 TR Maianthemum canadense Canada Mayflower MAIACAN S5 FO Maianthemum racemosum ssp. racemosum False Solomon's Seal MAIARAR S5 FO Maianthemum sp False Solomon's Seal Species MAIA_SP FO

Monday, March 05, 2007 Page 30 of 52 Scientific Name Common Name Code S Rank Form Maianthemum stellatum Starry False Solomon's Seal MAIASTE S5 FO Maianthemum trifolium Three-leaved Solomon's Seal MAIATRI S5 FO Malaxis monophyllos ssp. brachypoda White Adder's-mouth MALAMOB S4 FO Malaxis sp Adder's-mouth Species MALA_SP FO Malaxis unifolia Green Adder's-mouth MALAUNI S4S5 FO Malus coronaria Wild Crabapple MALUCOR S4 SH Malus pumila Common Apple MALUPUM SE5 SH Malus sp Crabapple Species MALU_SP SH Malva alcea European Mallow MALVALC SE1 FO Malva moschata Musk Mallow MALVMOS SE5 FO Malva neglecta Cheeses MALVNEG SE5 FO Malva rotundifolia Round-leaved Mallow MALVROT SE2 FO Malva sp Mallow Species MALV_SP FO Malva sylvestris High Mallow MALVSYL SE1 FO Malva verticillata Whorled Mallow MALVVER SE1 FO Marrubium vulgare White Horehound MARRVUL SE2 FO Marsilea quadrifolia Water-clover MARSQUA SE1 FE Matricaria matricarioides Pineapple Weed MATMATR SE5 FO Matricaria perforata Scentless Chamomile MATRPER SE FO Matricaria recutita German Chamomile MATRREC SE FO Matteuccia struthiopteris var. pensylvanica Ostrich Fern MATTSTP S5 FE Medeola virginiana Indian Cucumber-root MEDEVIR S5 FO Medicago lupulina Black Medick MEDILUP SE5 FO Medicago sativa ssp. sativa Alfalfa MEDISAS SE5 FO Medicago sp Medicago Species MEDI_SP FO Megalodonta beckii Beck's Water-marigold MEGABEC S5 FO Melampyrum lineare Cow-wheat MELALIN S4S5 FO Melica smithii Smith's Melic Grass MELISMI S4? GR Melilotus alba White Sweet-clover MELIALB SE5 FO Melilotus officinalis Yellow Sweet-clover MELIOFF SE5 FO Melilotus sp Sweet-clover Species MELI_SP FO Melissa officinalis Lemon-balm MELIOFO SE1 FO Menispermum canadense Moonseed MENICAN S4 VW Mentha arvensis ssp. borealis Wild Mint MENTARB S5 FO Mentha sp Mint Species MENT_SP FO Mentha spicata Spearmint MENTSPI SE4 FO Mentha suaveolens Round-leaved Mint MENTSUA SE1 FO Mentha X piperita Peppermint MENTPIP SHBE4 FO Mentha X villosa Woolly Mint MENTVIL SHBE1 FO Menyanthes trifoliata Common Bogbean MENYTRI S5 FO Mertensia virginica Virginia Bluebells MERTVIR S3 FO Milium effusum Wood Millet MILIEFF S4S5 GR Mimulus alatus Winged Monkey-flower MIMUALA S2 FO Mimulus moschatus Musky Monkey-flower MIMUMOS S2? FO Mimulus ringens Square-stemmed Monkey-flower MIMURIN S5 FO Mimulus sp Monkey-flower Species MIMU_SP FO Minuartia michauxii Rock Sandwort MINUMIC S5 FO Mirabilis hirsuta Hairy Umbrella-wort MIRAHIR SE1 FO Mirabilis nyctaginea Wild Four-o'clock MIRANYC S4 FO

Monday, March 05, 2007 Page 31 of 52 Scientific Name Common Name Code S Rank Form Miscanthus sacchariflorus Japanese Plume Grass MISCSAC SE3 GR Miscanthus sinensis Chinese Plume Grass MISCSIN SE1 GR Mitchella repens Partridge Berry MITCREP S5 SH Mitella diphylla Bishop's Cap MITEDIP S5 FO Mitella nuda Naked Mitrewort MITENUD S5 FO Mitella sp Bishop's Cap Species MITE_SP FO Moehringia lateriflora Grove Sandwort MOEHLAT S5 FO Mollugo verticillata Indian Chickweed MOLLVER SE5 FO Monarda didyma Oswego Tea MONADID S3 FO Monarda fistulosa Wild Bergamot MONAFIS S5 FO Monarda punctata var. villicaulis Horse Mint MONAPUV S1 FO Monarda sp Monarda Species MONA_SP FO Moneses uniflora One-flowered Pyrola MONEUNF S5 FO Monotropa hypopithys Pinesap MONOHIP S4 FO Monotropa uniflora Indian-pipe MONOUNI S5 FO Morus alba White Mulberry MORUALB SE5 TR Morus alba X rubra Hybrid Mulberry MORUALR SU TR Morus rubra Red Mulberry MORURUB S2 TR Morus sp Mulberry Species MORU_SP TR Moss sp Moss Species MOSS_SP MO Muhlenbergia asperifolia Scratch Grass MUHLASP SE3 GR Muhlenbergia frondosa Wirestem Muhly MUHLFRO S4 GR Muhlenbergia glomerata Marsh Muhly MUHLGLO S5 GR Muhlenbergia mexicana var. mexicana Leafy Satin Grass MUHLMEM S5 GR Muhlenbergia richardsonis Soft-leaf Muhly MUHLRIC S2 GR Muhlenbergia schreberi Niblewill MUHLSCH S4 GR Muhlenbergia sobolifera Rock Satin Grass MUHLSOB S1 GR Muhlenbergia sp Satin Grass Species MUHL_SP GR Muhlenbergia sylvatica var. sylvatica Woodland Satin Grass MUHLSYS S2 GR Muhlenbergia tenuiflora var. tenuiflora Slender Satin Grass MUHLTET S2 GR Muhlenbergia uniflora One-flowered Satin Grass MUHLUNI S4 GR Muscari botryoides Grape Hyacinth MUSCBOT SE3 FO Mycelis muralis Wall Lettuce MYCEMUR SE2 FO Myosotis arvensis Field Scorpion-grass MYOSARV SE4 FO Myosotis discolor Two-coloured Forget-me-not MYOSDIS SE1 FO Myosotis laxa Small Forget-me-not MYOSLAX S5 FO Myosotis macrosperma Large-seeded Forget-me-not MYOSMAC S1 FO Myosotis scorpioides Common Forget-me-not MYOSSCO SE5 FO Myosotis sp Forget-me-not Species MYOS_SP FO Myosotis stricta Upright Forget-me-not MYOSSTR SE4 FO Myosotis sylvatica Woodland Forget-me-not MYOSSYL SE4 FO Myosotis verna Spring Forget-me-not MYOSVER S4? FO Myosoton aquaticum Water Chickweed MYOSAQU SE3 FO Myosurus minimus Mouse-tail MYOSMIN S1 FO Myrica gale Sweet Gale MYRIGAL S5 SH Myrica pensylvanica Bayberry MYRIPEN S1 SH Myriophyllum alterniflorum Loose-flowered Water-milfoil MYRIALT S4 FO Myriophyllum farwellii Farwell's Water-milfoil MYRIFAR S4 FO Myriophyllum heterophyllum Various-leaved Water-milfoil MYRIHET S4? FO

Monday, March 05, 2007 Page 32 of 52 Scientific Name Common Name Code S Rank Form Myriophyllum sibiricum Pale Water-milfoil MYRISIB S5 FO Myriophyllum sp Water-milfoil Species MYRI_SP FO Myriophyllum spicatum Spiked Water-milfoil MYRISPI SE5 FO Myriophyllum tenellum Slender Water-milfoil MYRITEN S4 FO Myriophyllum verticillatum Low Water-milfoil MYRIVER S5 FO Myrrhis odorata Scented Myrrhis MYRRODO SE1 FO Najas flexilis Slender Naiad NAJAFLE S5 FO Najas gracillima Tread-like Naiad NAJAGRA S2 FO Najas guadalupensis Southern Naiad NAJAGUA S3 FO Najas minor Brittle-leaf Naiad NAJAMIN SE2 FO Najas sp Naiad Species NAJA_SP FO Narcissus pseudonarcissus Daffodil NARCPSE SE2 FO Narcissus sp Daffodil Species NARC_SP FO Nasturtium microphyllum Small-leaved Water-cress NASTMIC SE5 FO Nasturtium officinale Water-cress NASTOFF SE FO Nasturtium sp Water-cress Species NAST_SP FO Nelumbo lutea American Lotus NELULUT S2 FO Nemopanthus mucronatus Mountain-holly NEMOMUC S5 SH Nepeta cataria Catnip NEPECAT SE5 FO Neslia paniculata Yellow Ball-mustard NESLPAN SE3 FO Nicandra physalodes Apple-of-Peru NICAPHY SE1 FO Nicotiana rustica Wild Tobacco NICORUS SE1 FO Nigella damascena Love-in-a-mist NIGEDAM SE1 FO Nuphar advena Large Yellow Pond-lily NUPHADV S3 FO Nuphar microphylla Small Yellow Pond-lily NUPHMIC S4? FO Nuphar rubrodisca Red-disked Yellow Pond-lily NUPHRUB S3? FO Nuphar sp Pond-lily Species NUPH_SP FO Nuphar variegata Bulhead Pond-lily NUPHVAR S5 FO Nymphaea odorata ssp. odorata Small White Water-lily NYMPODD S5? FO Nymphaea odorata ssp. tuberosa Fragrant White Water-lily NYMPODT SU FO Nymphaea sp Water-lily Species NYMP_SP FO Nymphoides cordata Floating-heart NYMPCOR S4? FO Nyssa sylvatica Black Gum NYSSSYL S3 TR Odontites verna ssp. serotina Early Eyebright ODONVES SE1 FO Oenothera biennis Common Evening-primrose OENOBIE S5 FO Oenothera clelandii Cleland's Evening-primrose OENOCLE S1 FO Oenothera laciniata Cut-leaved Evening-primrose OENOLAC SE1 FO Oenothera nuttallii White Evening-primrose OENONUT SE1 FO Oenothera oakesiana Oakes' Evening-primrose OENOOAK S4? FO Oenothera parviflora Small-flowered Evening-primrose OENOPAR S4? FO Oenothera perennis Small Sundrops OENOPER S4S5 FO Oenothera pilosella ssp. pilosella Prairie Evening-primrose OENOPIP S2 FO Oenothera sp Evening-primrose Species OENO_SP FO Oenothera villosa ssp. villosa Villose Evening-primrose OENOVIV S2? FO Onoclea sensibilis Sensitive Fern ONOCSEN S5 FE Onopordum acanthium Scotch Thistle ONOPACA SE4 FO Onosmodium molle ssp. hispidissimum Shaggy False Gromwell ONOSMOH S2 FO Ophioglossum pusillum Northern Adder's-tongue OPHIPUS S4S5 FE Opuntia humifusa Eastern Prickly Pear Cactus OPUNHUM S1 FO

Monday, March 05, 2007 Page 33 of 52 Scientific Name Common Name Code S Rank Form Origanum vulgare Wild Marjaram ORIGVUL SE5 FO Ornithogalum nutans Nodding Star-of-Bethlehem ORNINUT SE1 FO Ornithogalum umbellatum Nap-at-noon ORNIUMB SE3 FO Orobanche fasciculata Clustered Cancer-root OROBFAS S1 FO Orobanche uniflora One-flowered Cancer Root OROBUNI S4 FO secunda One-sided Shinleaf ORTHSEC S5 FO Oryzopsis asperifolia Rough-leaved Rice Grass ORYZASP S5 GR Oryzopsis pungens Short-horned Rice Grass ORYZPUN S5 GR Oryzopsis racemosa Black-seeded Rice Grass ORYZRAC S4 GR Oryzopsis sp Rice Grass Species ORYZ_SP GR Osmorhiza claytonii Hairy Sweet-cicely OSMOCLA S5 FO Osmorhiza longistylis Aniseroot OSMOLON S5 FO Osmorhiza sp Sweet-cicely Species OSMO_SP FO Osmunda cinnamomea Cinnamon Fern OSMUCIN S5 FE Osmunda claytoniana Interrupted Fern OSMUCLA S5 FE Osmunda regalis var. spectabilis Royal Fern OSMURES S5 FE Osmunda sp Osmunda Species OSMU_SP FE Ostrya virginiana Ironwood OSTRVIR S5 TR Oxalis acetosella ssp. montana True Wood-sorrel OXALACM S5 FO Oxalis corniculata Creeping Wood-sorrel OXALCOR SE1 FO Oxalis dillenii Dillen's Wood-sorrel OXALDIL S5? FO Oxalis sp Wood-sorrel Species OXAL_SP FO Oxalis stricta Upright Yellow Wood-sorrel OXALSTR S5 FO Oxypolis rigidior Cowbane OXYPRIG S2 FO Panax quinquefolius Ginseng PANAQUI S2 FO Panax sp Ginseng Species PANA_SP FO Panax trifolius Dwarf Ginseng PANATRI S4 FO Panicum acuminatum Hairy Panic Grass PANIACU S5 GR Panicum acuminatum var. lindheimeri Lindheimer's Panic Grass PANIACL S4 GR Panicum boreale Northern Panic Grass PANIBOR S4 GR Panicum capillare Witch Panic Grass PANICAP S5 GR Panicum clandestinum Deer-tongue Panic Grass PANICLA S2 GR Panicum columbianum var. siccanum Panic Grass PANICOS S4 GR Panicum depauperatum Starved Panic Grass PANIDEP S4 GR Panicum dichotomiflorum Fall Panic Grass PANIDIF SE5 GR Panicum dichotomum Forked Panic Grass PANIDIC S2 GR Panicum flexile Wiry Panic Grass PANIFLE S4 GR Panicum gattingeri Gattinger's Panic Grass PANIGAT S3 GR Panicum latifolium Broad-leaved Panic Grass PANILAT S4 GR Panicum leibergii Prairie Panic Grass PANILEI S2 GR Panicum linearifolium Narrow-leaved Panic Grass PANILIN S4S5 GR Panicum meridionale Matted Panic Grass PANIMER S1 GR Panicum miliaceum Broom-corn Millet PANIMIL SE4 GR Panicum oligosanthes Few-flowered Panic Grass PANIOLI S4 GR Panicum perlongum Long-stalked Panic Grass PANIPER S1S2 GR Panicum philadelphicum Philadelphia Panic Grass PANIPHI S4 GR Panicum rigidulum Stiff Panic Grass PANIRIG S2S3 GR Panicum sp Panic Grass Species PANI_SP GR Panicum sphaerocarpon Round-fruited Panic Grass PANISPH S3 GR

Monday, March 05, 2007 Page 34 of 52 Scientific Name Common Name Code S Rank Form Panicum spretum Eaton's Panic Grass PANISPR S2 GR Panicum tuckermanii Tuckerman's Panic Grass PANITUC S4 GR Panicum villosissimum White-haired Panic Grass PANIVIL S3 GR Panicum virgatum Switch Grass PANIVIR S4 GR Panicum xanthophysum Slender Panic Grass PANIXAN S4 GR Papaver orientale Oriental Poppy PAPAORI SE1 FO Papaver rhoeas Corn Poppy PAPARHO SE1 FO Papaver somniferum Common Poppy PAPASOM SE1 FO Parietaria pensylvanica Pellitory PARIPEN S4 FO Parnassia glauca Grass-of-parnassus PARNGLA S5 FO Parnassia parviflora Small-flowered Grass-of-parnassus PARNPAR S4? FO Parnassia sp Grass-of-parnassus Species PARN_SP FO Paronychia canadensis Tall Forked Chickweed PAROCAN S1 FO Paronychia fastigiata var. fastigiata Low Forked Chickweed PAROFAF S1 FO Parthenocissus inserta Thicket Creeper PARTINS S5 VW Parthenocissus quinquefolia Virginia Creeper PARTQUI S4? VW Parthenocissus sp Virginia Creeper Species PART_SP VW Paspalum setaceum Slender Beadgrass PASPSET S2 GR Pastinaca sativa Wild Parsnip PASTSAT SE5 FO Pedicularis canadensis Wood-betony PEDICAN S5 FO Pedicularis lanceolata Swamp Lousewort PEDILAN S4 FO Pedicularis sp Wood-betony Species PEDI_SP FO Pellaea atropurpurea Purple-stem Cliff-brake PELLATR S3 FE Pellaea glabella ssp. glabella Smooth Cliff-brake PELLGLG S4 FE Peltandra virginica ssp. virginica Green Arrow-arum PELTVIV S2 FO Penstemon digitalis Foxglove Beard-tongue PENSDIG S4S5 FO Penstemon hirsutus Hairy Beard-tongue PENSHIR S4 FO Penstemon sp Beard-tongue Species PENS_SP FO Penstemon tubaeflorus Tubular-flowered Beard-tongue PENSTUB SE1 FO Penthorum sedoides Virginia Stonecrop PENTSED S5 FO Petasites frigidus Sweet Coltsfoot PETAFRI S5 FO Petasites japonicus Butterfly Dock PETAJAP SE1 FO Petrorhagia saxifraga Saxifrage Pink PETRSAX SE2 FO Petroselinum crispum Garden Parsley PETRCRI SE1 FO Petunia X hybrida Hybrid Petunia PETUHYB SHBE1 FO Phacelia purshii Miami-mist PHACPUR S1 FO Phacelia tanacetifolia Tansy-leaved Milkvetch PHACTAN SE1 FO Phalaris arundinacea Reed Canary Grass PHALARU S5 GR Phalaris canariensis Canary Grass PHALCAN SE2 GR Phalaris sp Canary Grass Species PHAL_SP GR Phegopteris connectilis Northern Beech Fern PHEGCON S5 FE Phegopteris hexagonoptera Broad Beech Fern PHEGHEX S3 FE Phleum pratense Timothy PHLEPRA SE5 GR Phlox divaricata Wild Blue Phlox PHLODIV S4 FO Phlox maculata Wild Sweet William PHLOMAC SE1 FO Phlox paniculata Fall Phlox PHLOPAN SE3 FO Phlox sp Phlox Species PHLO_SP FO Phlox subulata ssp. subulata Northern Moss Phlox PHLOSUS S1? FO Phragmites australis Common Reed PHRAAUS S5 GR

Monday, March 05, 2007 Page 35 of 52 Scientific Name Common Name Code S Rank Form Phryma leptostachya Lopseed PHRYLEP S4S5 FO Phyla lanceolata Fogfruit PHYLLAN S2 FO Physalis alkekengi Chinese Lantern PHYSALK SE2 FO Physalis heterophylla Clammy Ground-cherry PHYSHET S4 FO Physalis pubescens Low Hairy Ground-cherry PHYSPUB SE1 FO Physalis sp Ground-cherry Species PHYS_SP FO Physalis virginiana Smooth Ground-cherry PHYSVIR SU FO Physocarpus opulifolius Ninebark PHYSOPU S5 SH Physostegia virginiana Virginia False Dragonhead PHYSVIV S4 FO Phytolacca americana Pokeweed PHYTAME S4 FO Picea abies Norway PICEABI SE3 TR Picea glauca White Spruce PICEGLA S5 TR Picea mariana Black Spruce PICEMAR S5 TR Picea rubens Red Spruce PICERUB S3 TR Picea sp Spruce Species PICE_SP TR Picris hieracioides ssp. hieracioides Hawkweed Oxtongue PICRHIH SE5 FO Pilea fontana Spring Clearweed PILEFON S4 FO Pilea pumila Common Clearweed PILEPUM S5 FO Pilea sp Clearweed Species PILE_SP FO Pimpinella saxifraga Burnet Saxifrage PIMPSAX SE1 FO Pinguicula vulgaris Common Butterwort PINGVUL S5 FO Pinus banksiana Jack Pine PINUBAN S5 TR Pinus nigra Austrian Pine PINUNIG SE2 TR Pinus resinosa Red Pine PINURES S5 TR Pinus rigida Pitch Pine PINURIG S2S3 TR Pinus sp Pine Species PINU_SP TR Pinus strobus Eastern White Pine PINUSTR S5 TR Pinus sylvestris Scots Pine PINUSYL SE5 TR Piperia unalascensis Orchid PIPEUNA S4 FO Pisum sativum Garden Pea PISUSAT SE1 VI Plantago arenaria Sand Plantain PLANARE SE4 FO Plantago aristata Large-bracted Plantain PLANARI SE1 FO Plantago cordata Heart-leaved Plantain PLANCOR S1 FO Plantago lanceolata Ribgrass PLANLAN SE5 FO Plantago major Common Plantain PLANMAJ SE5 FO Plantago media Hoary Plantain PLANMED SE3 FO Plantago rugelii Pale Plantain PLANRUG S5 FO Plantago sp Plantain Species PLAN_SP FO Plantago virginica Dwarf Plantain PLANVIR SE1 FO Platanthera blephariglottis var. blephariglottis Northern White-fringed Orchid PLATBLB S3S4 FO Platanthera clavellata Club-spur Orchid PLATCLA S4S5 FO Platanthera dilatata Tall White Bog Orchid PLATDIL S5 FO Platanthera flava var. herbiola Tubercled Orchid PLATFLH S3 FO Platanthera grandiflora Large Purple-fringed Orchid PLATGRA S1 FO Platanthera hookeri Hooker's Orchid PLATHOO S4S5 FO Platanthera hyperborea Tall Northern Green Orchid PLATHYP S3 FO Platanthera lacera Ragged-fringed Orchid PLATLAC S4S5 FO Platanthera leucophaea Eastern Prairie Fringed Orchid PLATLEU S2 FO Platanthera macrophylla Large Round-leaf Orchid PLATMAC S2 FO

Monday, March 05, 2007 Page 36 of 52 Scientific Name Common Name Code S Rank Form Platanthera obtusata Blunt-leaf Rein Orchid PLATOBT S5 FO Platanthera orbiculata Small Round-leaf Orchid PLATORB S4S5 FO Platanthera psycodes Small Purple-fringed Orchid PLATPSY S5 FO Platanthera sp Orchid Species PLAT_SP FO Platanus occidentalis Sycamore PLATOCC S4 TR Platanus sp Sycamore Species PLTA_SP TR Platanus X acerifolia London Plane Tree PLATACE SHBE1 TR Poa alpina Alpine Blue Grass POA_ALP S4 GR Poa alsodes Grove Blue Grass POA_ALS S4 GR Poa annua Annual Blue Grass POA_ANN SE5 GR Poa arida Plains Blue Grass POA_ARI SE4 GR Poa bulbosa Bulbous Blue Grass POA_BUL SE3 GR Poa compressa Canada Blue Grass POA_COM SE5 GR Poa glauca ssp. glaucantha Glaucous Blue Grass POA_GLL S4 GR Poa languida Weak Blue Grass POA_LAN S3 GR Poa nemoralis Wood Blue Grass POA_NEM SE3 GR Poa palustris Fowl Blue Grass POA_PAL S5 GR Poa pratensis ssp. pratensis Kentucky Blue Grass POA_PRP S5 GR Poa saltuensis Two-rayed Blue Grass POA_SAL S4 GR Poa secunda One-sided Blue Grass POA_SEC S1 GR Poa sp Blue Grass Species POA__SP GR Poa sylvestris Woodland Blue Grass POA_SYL S2 GR Poa trivialis Rough Blue Grass POA_TRI SE3 GR Podophyllum peltatum Mayapple PODOPEL S5 FO Podostemum ceratophyllum River-weed PODOCER S2 FO Pogonia ophioglossoides Rose Pogonia POGOOPH S4S5 FO Polanisia dodecandra Rough- Clammyweed POLADOD S4 FO Polygala incarnata Pink Milkwort POLYINC S1 FO Polygala paucifolia Fringed Polygala POLYPAU S5 FO Polygala polygama Racemed Milkwort POLYPOL S4 FO Polygala sanguinea Field Milkwort POLYSAN S4 FO Polygala senega Seneca Snakeroot POLYSEN S4 FO Polygala sp Milkwort Species POGA_SP FO Polygala verticillata Whorled Milkwort POLYVER S4 FO Polygonatum biflorum Smooth Solomon's Seal POLYBIF S4 FO Polygonatum multiflorum Solomon's Seal POLYMUL SE1 FO Polygonatum pubescens Hairy Solomon's Seal POLYPUB S5 FO Polygonatum sp Solomon's Seal Species POGT_SP FO Polygonella articulata Coast Jointweed POLYART S3 FO Polygonum achoreum Striate Knotweed POLYACH S5 FO Polygonum amphibium Water Smartweed POLYAMP S5 FO Polygonum arenastrum Doorweed POLYARE SE5 FO Polygonum arifolium Halberd-leaved Tearthumb POLYARI S3 FO Polygonum aviculare Common Knotweed POLYAVI SE5 FO Polygonum buxiforme Boxwood Knotweed POLYBUX S4? FO Polygonum caespitosum Long-bristled Smartweed POLYCAE SE1 FO Polygonum careyi Carey's Knotweed POLYCAR S3S4 FO Polygonum cilinode Fringed Bindweed POLYCIL S5 VI Polygonum convolvulus Black Bindweed POLYCON SE5 VI

Monday, March 05, 2007 Page 37 of 52 Scientific Name Common Name Code S Rank Form Polygonum cuspidatum Japanese Knotweed POLYCUS SE4 FO Polygonum douglasii Douglas' Knotweed POLYDOU S4 FO Polygonum erectum Erect Knotweed POLYERE S1 FO Polygonum hydropiper Common Smartweed POLYHDP SE5 FO Polygonum hydropiperoides Mild Water Pepper POLYHYD S5 FO Polygonum lapathifolium Pale Smartweed POLYLAP S5 FO Polygonum neglectum Narrow-leaved Knotweed POLYNEG S4? FO Polygonum orientale Prince's Feather POLYORI SE3 FO Polygonum pensylvanicum Pink Knotweed POLYPEN S5 FO Polygonum persicaria Lady's Thumb POLYPER SE5 FO Polygonum punctatum Dotted Smartweed POLYPUN S5 FO Polygonum ramosissimum Bushy Knotweed POLYRAM S4 FO Polygonum sachalinense Giant Knotweed POLYSAC SE1 FO Polygonum sagittatum Arrow-leaved Tearthumb POLYSAG S4 FO Polygonum scandens Climbing False Buckwheat POLYSCN S4S5 VI Polygonum sp Smartweed Species POLY_SP FO Polygonum tenue var. tenue Slender Knotweed POLYTET S2 FO Polygonum virginianum Jumpseed POLYVIR S4 FO Polymnia canadensis Small-flowered Leaf-cup POLYCAN S4 FO Polypodium virginianum Rock Polypody POLYVIG S5 FE Polystichum acrostichoides Christmas Fern POLYACR S5 FE Polystichum braunii Braun's Holly Fern POLYBRA S3 FE Polystichum lonchitis Holly Fern POLYLON S4 FE Polystichum sp Holly Fern Species POLS_SP FE Pontederia cordata Pickerel-weed PONTCOR S5 FO Populus alba European White Poplar POPUALB SE5 TR Populus balsamifera ssp. balsamifera Balsam Poplar POPUBAB S5 TR Populus deltoides ssp. deltoides Eastern Cottonwood POPUDED S5 TR Populus grandidentata Largetooth Aspen POPUGRA S5 TR Populus heterophylla Swamp Cottonwood POPUHET S1 TR Populus nigra Lombardy Poplar POPUNIG SE4 TR Populus sp Poplar Species POPU_SP TR Populus tremuloides Trembling Aspen POPUTRE S5 TR Populus X canadensis Carolina Poplar POPUCAN SHBE1 TR Populus X jackii Jack's Poplar POPUJAC SHB2 TR Portulaca oleracea Purslane PORTOLE SE5 FO Potamogeton alpinus Red Pondweed POTAALP S5 FO Potamogeton amplifolius Large-leaved Pondweed POTAAMP S5 FO Potamogeton berchtoldii Berchtold's Pondweed POTABER S4S5 FO Potamogeton bicupulatus Snailseed Pondweed POTABIC S3S4 FO Potamogeton confervoides Alga Pondweed POTACON S2 FO Potamogeton crispus Curly Pondweed POTACRI SE5 FO Potamogeton epihydrus Ribbon-leaf Pondweed POTAEPI S4S5 FO Potamogeton filiformis Thread-leaf Pondweed POTAFIL S5 FO Potamogeton foliosus Leafy Pondweed POTAFOL S5 FO Potamogeton friesii Fries' Pondweed POTAFRI S4 FO Potamogeton gramineus Grass-leaved Pondweed POTAGRA S5 FO Potamogeton hillii Hill's Pondweed POTAHIL S2 FO Potamogeton illinoensis Pondweed POTAILL S4 FO

Monday, March 05, 2007 Page 38 of 52 Scientific Name Common Name Code S Rank Form Potamogeton natans Floating-leaf Pondweed POTANAT S5 FO Potamogeton nodosus Long-leaved Pondweed POTANOD S5 FO Potamogeton oakesianus Oakes' Pondweed POTAOAK S4 FO Potamogeton obtusifolius Blunt-leaf Pondweed POTAOBT S4S5 FO Potamogeton pectinatus Sago Pondweed POTAPEC S5 FO Potamogeton perfoliatus Clasping-leaved Pondweed POTAPER S4 FO Potamogeton praelongus White-stem Pondweed POTAPRA S4S5 FO Potamogeton pusillus Small Pondweed POTAPUS S4S5 FO Potamogeton richardsonii Richardson's Pondweed POTARIC S5 FO Potamogeton robbinsii Fern Pondweed POTAROB S4S5 FO Potamogeton sp Pondweed Species POTA_SP FO Potamogeton spirillus Spiral Pondweed POTASPI S4S5 FO Potamogeton strictifolius Straight-leaved Pondweed POTASTR S4 FO Potamogeton vaginatus Big-sheath Pondweed POTAVAG S5 FO Potamogeton vaseyi Vasey's Pondweed POTAVAS S4 FO Potamogeton X hagstroemii Hagstroem's Hybrid Pondweed POTAHAG SHB1? FO Potamogeton X haynesii Haynes' Hybrid Pondweed POTAHAY SHB1? FO Potamogeton X scoliophyllus Bent-leaved Hybrid Pondweed POTASCO SHB1? FO Potamogeton X spathuliformis Spatulate Hybrid Pondweed POTASPA SHB1? FO Potamogeton X subnitens Shining Hybrid Pondweed POTASUB SHB1? FO Potamogeton zosteriformis Flat-stem Pondweed POTAZOS S5 FO Potentilla anserina ssp. anserina Silverweed POTEANA S5 FO Potentilla argentea Silvery Cinquefoil POTEAGT SE5 FO Potentilla arguta Tall Cinquefoil POTEARG S4 FO Potentilla canadensis Dwarf Cinquefoil POTECAN SU FO Potentilla fruticosa ssp. floribunda Shrubby Cinquefoil POTEFRF S5 SH Potentilla inclinata Ashy Cinquefoil POTEINC SE4 FO Potentilla norvegica ssp. monspeliensis Rough Cinquefoil POTENOM S5 FO Potentilla palustris Marsh Cinquefoil POTEPAL S5 FO Potentilla paradoxa Bushy Cinquefoil POTEPAR S3 FO Potentilla recta Rough-fruited Cinquefoil POTEREC SE5 FO Potentilla simplex Common Cinquefoil POTESIM S5 FO Potentilla sp Cinquefoil Species POTE_SP FO Prenanthes alba White Lettuce PRENALB S5 FO Prenanthes altissima Tall White Lettuce PRENALT S5 FO Prenanthes racemosa ssp. racemosa Glaucous White Lettuce PRENRAR SU FO Prenanthes sp White Lettuce Species PREN_SP FO Primula mistassinica Dwarf Canadian Primrose PRIMMIS S4 FO Primula veris Cowslip PRIMVER SE1 FO Proserpinaca palustris Marsh Mermaid-weed PROSPAL S4 FO Prunella vulgaris ssp. lanceolata Heal-all PRUNVUL S5 FO Prunella vulgaris ssp. vulgaris Selfheal PRUNVUV SE3 FO Prunus americana American Plum PRUNAME S4 SH Prunus avium Sweet Cherry PRUNAVI SE4 TR Prunus cerasus Sour Cherry PRUNCEU SE1 TR Prunus domestica var. domestica Common Plum PRUNDOD SE2 SH Prunus mahaleb Mahaleb Cherry PRUNMAH SE2 SH Prunus nigra Canada Plum PRUNNIG S4 SH Prunus pensylvanica Pin Cherry PRUNPEN S5 SH

Monday, March 05, 2007 Page 39 of 52 Scientific Name Common Name Code S Rank Form Prunus persica Common Peach PRUNPER SE1 SH Prunus pumila var. pumila Sand Cherry PRUNPUP S4? SH Prunus pumila var. susquehanae Broad-leaved Sand Cherry PRUNPUS S4? SH Prunus serotina Black Cherry PRUNSER S5 TR Prunus sp Cherry Species PRUN_SP SH Prunus virginiana ssp. virginiana Choke Cherry PRUNVIV S5 SH Ptelea trifoliata Hop-tree PTELTRI S3 SH Pteridium aquilinum var. latiusculum Eastern Bracken Fern PTERAQL S5 FE Pterospora andromedea Giant Pinedrops PTERAND S2 FO Puccinellia distans Spreading Goose Grass PUCCDIS SE5 GR Puccinellia nuttalliana Nuttall's Goose Grass PUCCNUT SH GR Pycnanthemum incanum var. incanum Hoary Mountain Mint PYCNINI S1 FO Pycnanthemum sp Mountain Mint Species PYCN_SP FO Pycnanthemum tenuifolium Slender Mountain Mint PYCNTEN S3 FO Pycnanthemum verticillatum var. pilosum Hairy Mountain Mint PYCNVEP S1 FO Pycnanthemum verticillatum var. verticillatum Whorled Mountain Mint PYCNVEV S1? FO Pycnanthemum virginianum Virginia Mountain Mint PYCNVIR S4 FO Pyrola americana Round-leaved Pyrola PYROAME S4? FO Pyrola asarifolia Pink Pyrola PYROASA S5 FO Pyrola chlorantha Green-flowered Pyrola PYROCHL S4S5 FO Pyrola elliptica Shinleaf PYROELL S5 FO Pyrola sp Pyrola Species PYRO_SP FO Pyrus communis Common Pear PYRUCOM SE4 SH Quercus alba White Oak QUERALB S5 TR Quercus bicolor Swamp White Oak QUERBIC S4 TR Quercus ellipsoidalis Northern Pin Oak QUERELL S3 TR Quercus ilicifolia Bear Oak QUERILI S1 SH Quercus macrocarpa Bur Oak QUERMAC S5 TR Quercus muehlenbergii Chinquapin Oak QUERMUE S4 TR Quercus palustris Pin Oak QUERPAL S3 TR Quercus prinoides Dwarf Chinquapin Oak QUERPRI S2 SH Quercus rubra Red Oak QUERRUB S5 TR Quercus shumardii Shumard Oak QUERSHU S3 TR Quercus sp Oak Species QUER_SP TR Quercus velutina Black Oak QUERVEL S4 TR Quercus X bebbiana Bebb's Oak QUERBEB SHB1 TR Quercus X hawkinsiae Hawkins' Oak QUERHAW SHB1 TR abortivus Kidney-leaf Buttercup RANUABO S5 FO Tall Buttercup RANUACR SE5 FO Ranunculus aquatilis var. diffusus White Water Crowfoot RANUAQD S4S5 FO Ranunculus bulbosus Bulbous Buttercup RANUBUL SE3 FO Ranunculus cymbalaria Seaside Crowfoot RANUCYM S4 FO Ranunculus fascicularis Early Buttercup RANUFAS S4 FO Ranunculus ficaria Lesser Celandine RANUFIC SE1 FO Ranunculus flabellaris Yellow Water Buttercup RANUFLA S4? FO Ranunculus flammula var. reptans Creeping Spearwort RANUFLR SU FO Ranunculus hispidus var. caricetorum Swamp Buttercup RANUHIC S5 FO Ranunculus hispidus var. hispidus Hairy Buttercup RANUHIH S3 FO Ranunculus pensylvanicus Bristly Buttercup RANUPEN S5 FO

Monday, March 05, 2007 Page 40 of 52 Scientific Name Common Name Code S Rank Form Ranunculus recurvatus Hooked Buttercup RANUREC S5 FO Ranunculus repens Creeping Buttercup RANUREP SE5 FO Ranunculus rhomboideus Prairie Buttercup RANURHO S3 FO Ranunculus sceleratus var. sceleratus Cursed Crowfoot RANUSCS S5 FO Ranunculus sp Buttercup Species RANU_SP FO Raphanus raphanistrum Wild Radish RAPHRAP SE3 FO Raphanus sativus Garden Radish RAPHSAT SE1 FO Ratibida columnifera Prairie Coneflower RATICOL SE1 FO Ratibida pinnata Gray-headed Coneflower RATIPIN S2S3 FO Rhamnus alnifolia Alder-leaved Buckthorn RHAMALN S5 SH Rhamnus cathartica Common Buckthorn RHAMCAT SE5 SH Rhamnus frangula Glossy Buckthorn RHAMFRA SE5 SH Rhamnus sp Buckthorn Species RHAM_SP SH Rheum rhabarbarum Rhubarb RHEURHA SE2 FO Rhexia virginica Common Meadow-beauty RHEXVIR S3S4 FO Rhus aromatica Fragrant Sumac RHUSARO S5 SH Rhus copallina var. latifolia Shining Sumac RHUSCOL S3S4 SH Rhus glabra Smooth Sumac RHUSGLA S5 SH Rhus radicans ssp. negundo Climbing Poison-ivy RHUSRAN S5 VW Rhus radicans ssp. rydbergii Western Poison-ivy RHUSRYD S5 SH Rhus sp Sumac Species RHUS_SP SH Rhus typhina Staghorn Sumac RHUSTYP S5 SH Rhus vernix Poison Sumac RHUSVER S4 SH Rhus X pulvinata Hybrid Sumac RHUSPUL SHB2? SH Rhynchospora alba White Beak Rush RHYNALB S5 SE Rhynchospora capillacea Needle Beak Rush RHYNCAP S4? SE Rhynchospora capitellata Brown Beak Rush RHYNCPT S4 SE Rhynchospora fusca Gray Beak Rush RHYNFUS S4? SE Rhynchospora sp Beak Rush Species RHYN_SP SE Ribes americanum Wild Black Currant RIBEAME S5 SH Ribes cynosbati Prickly Gooseberry RIBECYN S5 SH Ribes glandulosum Skunk Currant RIBEGLA S5 SH Ribes hirtellum Smooth Gooseberry RIBEHIR S5 SH Ribes hudsonianum Northern Wild Black Currant RIBEHUD S5 SH Ribes lacustre Swamp Black Currant RIBELAC S5 SH Ribes nigrum Garden Black Currant RIBENIG SE2 SH Ribes odoratum Golden Currant RIBEODO SE4 SH Ribes rubrum Garden Red Currant RIBERUB SE5 SH Ribes sp Currant Species RIBE_SP SH Ribes triste Swamp Red Currant RIBETRI S5 SH Robinia pseudo-acacia Black Locust ROBIPSE SE5 TR Rorippa palustris ssp. fernaldiana Marsh Yellow-cress RORIPAF S5 FO Rorippa sylvestris Creeping Yellow-cress RORISYL SE5 FO ssp. sayi Prickly Wild Rose ROSAACS S5 SH Rosa blanda Smooth Wild Rose ROSABLA S5 SH Rosa canina Dog Rose ROSACAN SE2 SH Rosa carolina Pasture Rose ROSACAR S4 SH Rosa centifolia Cabbage Rose ROSACEN SE1 SH Rosa majalis Cinnamon Rose ROSAMAJ SE1 SH

Monday, March 05, 2007 Page 41 of 52 Scientific Name Common Name Code S Rank Form Rosa micrantha Small-flowered Rose ROSAMIC SE1 SH Rosa multiflora Multiflora Rose ROSAMUL SE4 SH Rosa palustris Swamp Rose ROSAPAL S5 SH Rosa rubiginosa Eglantine ROSARUB SE4 SH Rosa rugosa Wrinkled Rose ROSARUG SE1 SH Rosa setigera Prairie Rose ROSASET S3 SH Rosa sp Rose Species ROSA_SP SH Rotala ramosior Toothcup ROTARAM S1 FO Rubus allegheniensis Common Blackberry RUBUALL S5 SH Rubus canadensis Smooth Blackberry RUBUCAN S4? SH Rubus flagellaris Northern Dewberry RUBUFLA S4 SH Rubus hispidus Swamp Dewberry RUBUHIS S4S5 SH Rubus idaeus ssp. idaeus Red Raspberry RUBUIDI SE1 SH Rubus idaeus ssp. melanolasius Wild Red Raspberry RUBUIDM S5 SH Rubus occidentalis Black Raspberry RUBUOCC S5 SH Rubus odoratus Purple Flowering Raspberry RUBUODO S5 SH Rubus parviflorus Sparse-flowered Thimbleberry RUBUPAR S4 SH Rubus pubescens Dwarf Raspberry RUBUPUB S5 SH Rubus setosus Bristly Raspberry RUBUSET S4? SH Rubus sp Rubus Species RUBU_SP SH Rudbeckia hirta Black-eyed Susan RUDBHIR S5 FO Rudbeckia laciniata Cut-leaved Coneflower RUDBLAC S5 FO Rudbeckia triloba Brown-eyed Coneflower RUDBTRI SE4 FO Rumex acetosa Garden Sorrel RUMEACT SE FO Rumex acetosella ssp. acetosella Sheep Sorrel RUMEACA SE FO Rumex altissimus Pale Dock RUMEALT S2? FO Rumex crispus Curly Dock RUMECRI SE5 FO Rumex maritimus Golden Dock RUMEMAR S4 FO Rumex obtusifolius ssp. obtusifolius Bitter Dock RUMEOBO SE5 FO Rumex orbiculatus Great Water Dock RUMEORB S4S5 FO Rumex sp Dock Species RUME_SP FO Rumex triangulivalvis Willow-leaved Dock RUMETRI S4 FO Rumex verticillatus Swamp Dock RUMEVER S4 FO Sagina procumbens Procumbent Pearlwort SAGIPRO SE4 FO Sagittaria cuneata Northern Arrowhead SAGICUN S4? FO Sagittaria graminea var. cristata Crested Arrowhead SAGIGRC S3 FO Sagittaria graminea var. graminea Grass-leaved Arrowhead SAGIGRG S4S5 FO Sagittaria latifolia Common Arrowhead SAGILAT S5 FO Sagittaria rigida Sessile-fruited Arrowhead SAGIRIG S4? FO Sagittaria sp Arrowhead Species SAGI_SP FO Salix alba White Willow SALIALB SE4 TR Salix amygdaloides Peach-leaved Willow SALIAMY S5 TR Salix bebbiana Bebb's Willow SALIBEB S5 SH Salix candida Sage-leaved Willow SALICAN S5 SH Salix cinerea Ashy Willow SALICIC SE2 SH Salix cordata Heart-leaved Willow SALICOR S4S5 SH Salix discolor Pussy Willow SALIDIS S5 SH Salix eriocephala Missouri Willow SALIERI S5 SH Salix exigua Sandbar Willow SALIEXI S5 SH

Monday, March 05, 2007 Page 42 of 52 Scientific Name Common Name Code S Rank Form Salix fragilis Crack Willow SALIFRA SE5 TR Salix humilis Upland Willow SALIHUM S5 SH Salix lucida Shining Willow SALILUC S5 SH Salix myricoides Blue-leaved Willow SALIMYR S2S3 SH Salix nigra Black Willow SALINIG S4? TR Salix pedicellaris Bog Willow SALIPED S5 SH Salix pentandra Bay-leaved Willow SALIPEN SE2 SH Salix petiolaris Slender Willow SALIPET S5 SH Salix purpurea Purple Osier Willow SALIPUR SE4 SH Salix pyrifolia Balsam Willow SALIPYR S5 SH Salix serissima Autumn Willow SALISER S4 SH Salix sp Willow Species SALI_SP SH Salix viminalis Basket Willow SALIVIM SE2 SH Salix X rubens Hybrid White Willow SALIRUB SHBE4 TR Salsola collina Katune SALSCOL SE4 FO Salsola tragus Russian Thistle SALSTRA SE5 FO Salvia pratensis Meadow Sage SALVPRA SE2 FO Salvia reflexa Reflex-leaved Sage SALVREF SE1 FO Salvia sclarea Clear-eye SALVSCL SE1 FO Sambucus canadensis Common Elderberry SAMBCAN S5 SH Sambucus racemosa ssp. pubens Red-berried Elderberry SAMBRAP S5 SH Sambucus sp Elderberry Species SAMB_SP SH Samolus valerandi ssp. parviflorus Water Pimpernel SAMOVAP S4 FO Sanguinaria canadensis Bloodroot SANGCAN S5 FO Sanguisorba minor Salad Burnet SANGMIN SE4 FO Sanicula canadensis var. canadensis Short-styled Snakeroot SANICAC S4 FO Sanicula canadensis var. grandis Long-styled Canada Snakeroot SANICAG S2 FO Sanicula marilandica Black Snakeroot SANIMAR S5 FO Sanicula odorata Clustered Snakeroot SANIODO S5 FO Sanicula sp Snakeroot Species SANI_SP FO Sanicula trifoliata Large-fruited Snakeroot SANITRI S4 FO Saponaria officinalis Bouncing Bet SAPOOFF SE5 FO Sarracenia purpurea Pitcher-plant SARRPUR S5 FO Sassafras albidum Sassafras SASSALB S4 TR Satureja hortensis Savory SATUHOR SE2 FO Saururus cernuus Lizard's Tail SAURCER S3 FO Saxifraga virginiensis Early Saxifrage SAXIVIR S5 FO Scheuchzeria palustris Pod Grass SCHEPAL S4S5 FO Schizachne purpurascens ssp. purpurascens False Melic SCHIPUP S5 GR Schizachyrium scoparium Little Bluestem SCHISCO S4 GR Scilla siberica Squill SCILSIB SE2 FO Scirpus acutus Hardstem Bulrush SCIRACU S5 SE Scirpus atrovirens Black Bulrush SCIRATR S5 SE Scirpus cespitosus Tufted Bulrush SCIRCES S5 SE Scirpus clintonii Clinton's Bulrush SCIRCLI S2 SE Scirpus cyperinus Wool Grass SCIRCYP S5 SE Scirpus expansus Woodland Bulrush SCIREXP S1 SE Scirpus fluviatilis River Bulrush SCIRFLU S4S5 SE Scirpus georgianus Bristleless Dark Green Bulrush SCIRGEO S1? SE

Monday, March 05, 2007 Page 43 of 52 Scientific Name Common Name Code S Rank Form Scirpus hattorianus Mosquito Bulrush SCIRHAT S4 SE Scirpus heterochaetus Slender Bulrush SCIRHET S3 SE Scirpus hudsonianus Hudson Bay Bulrush SCIRHUD S5 SE Scirpus maritimus Salt-marsh Bulrush SCIRMAR S2S3 SE Scirpus microcarpus Small-fruited Bulrush SCIRMIC S5 SE Scirpus pedicellatus Pedicelled Bulrush SCIRPED S4? SE Scirpus pendulus Drooping Bulrush SCIRPEN S5 SE Scirpus pungens Common Three-square SCIRPUN S5 SE Scirpus smithii Blunt-scaled Bulrush SCIRSMI S2? SE Scirpus sp Bulrush Species SCIR_SP SE Scirpus subterminalis Water Bulrush SCIRSUB S4 SE Scirpus torreyi Torrey's Three-square SCIRTOR S4 SE Scirpus validus Softstem Bulrush SCIRVAL S5 SE Scirpus verecundus Small-flowered Bulrush SCIRVER S1 SE Scleranthus annuus Knawel SCLEANN SE5 FO Scleria pauciflora Few-flowered Nut Rush SCLEPAU S1 SE Scleria sp Nut Rush Species SCLE_SP SE Scleria triglomerata Tall Nut Rush SCLETRI S1 SE Scleria verticillata Low Nut Rush SCLEVER S3 SE Scrophularia lanceolata Hare Figwort SCROLAN S4 FO Scrophularia marilandica Carpenter's Square SCROMAR S4 FO Scrophularia sp Figwort Species SCRO_SP FO Scutellaria galericulata Hooded Skullcap SCUTGAL S5 FO Scutellaria lateriflora Blue Skullcap SCUTLAT S5 FO Scutellaria nervosa Veined Skullcap SCUTNER S1 FO Scutellaria parvula var. leonardii Leonard's Skullcap SCUTPAL S3 FO Scutellaria parvula var. parvula Small Skullcap SCUTPAP S4 FO Scutellaria sp Skullcap Species SCUT_SP FO Secale cereale Rye SECACER SE3 GR Sedum acre Mossy Stonecrop SEDUACR SE5 FO Sedum album White Stonecrop SEDUALB SE1 FO Sedum hispanicum Spanish Stonecrop SEDUHIS SE1 FO Sedum sarmentosum Stringy Stonecrop SEDUSAR SE1 FO Sedum sexangulare Hexagon Stonecrop SEDUSEX SE1 FO Sedum sp Stonecrop Species SEDU_SP FO Sedum spurium Two Row Stonecrop SEDUSPU SE1 FO Sedum telephium Live Forever SEDUTEL SE2 FO Sedum ternatum Wild Stonecrop SEDUTER SE1 FO Selaginella eclipes Meadow Spikemoss SELAECL S4 FE Selaginella rupestris Rock Spikemoss SELARUP S5 FE Selaginella selaginoides Northern Spikemoss SELASEL S4 FE Selaginella sp Spikemoss Species SELA_SP FE Senecio aureus Golden Ragwort SENEAUR S5 FO Senecio jacobaea Tansy Ragwort SENEJAC SE1 FO Senecio obovatus Round-leaved Ragwort SENEOBO S3 FO Senecio pauperculus Balsam Ragwort SENEPAU S5 FO Senecio plattensis Prairie Ragwort SENEPLA S2S3 FO Senecio sp Ragwort Species SENE_SP FO Senecio viscosus Sticky Ragwort SENEVIS SE3 FO

Monday, March 05, 2007 Page 44 of 52 Scientific Name Common Name Code S Rank Form Senecio vulgaris Common Ragwort SENEVUL SE5 FO Setaria faberi Giant Foxtail SETAFAB SE4 GR Setaria italica Foxtail Millet SETAITA SE1 GR Setaria pumila Yellow Foxtail SETAPUM SE5 GR Setaria sp Foxtail Species SETA_SP GR Setaria verticillata Bristly Foxtail SETAVER SE4 GR Setaria viridis Green Foxtail SETAVIR SE5 GR Shepherdia canadensis Buffalo Berry SHEPCAN S5 SH Shrub sp Shrub Species SHUB_SP SH Sicyos angulatus One-seeded Bur Cucumber SICYANG S5 VI Sida hermaphrodita Virginia Mallow SIDAHER S1 FO Sida spinosa Prickly Mallow SIDASPI SE2 FO Silene antirrhina Sleepy Catchfly SILEANT S5 FO Silene armeria Sweet William SILEARM SE2 FO Silene cserei Biennial Campion SILECSE SE4 FO Silene dichotoma Forked Catchfly SILEDIC SE1 FO Silene latifolia Bladder Campion SILELAT SE5 FO Silene noctiflora Night-flowering Catchfly SILENOC SE5 FO Silene sp Catchfly Species SILE_SP FO Silene vulgaris Catchfly SILEVUL SE5 FO Silphium integrifolium Prairie Rosin-weed SILPINT SE1 FO Silphium laciniatum var. laciniatum Compass Plant SILPLAL S1 FO Silphium perfoliatum var. perfoliatum Cup-plant SILPPEP S2 FO Silphium sp Silphium Species SILP_SP FO Silphium terebinthinaceum var. terebinthinaceum Prairie Dock SILPTET S1 FO Sinapis alba White Mustard SINAALB SE2 FO Sinapis arvensis Wild Mustard SINAARV SE5 FO Sisymbrium altissimum Tall Tumble-mustard SISYALT SE5 FO Sisymbrium loeselii Tall Hedge Mustard SISYLOE SE2 FO Sisymbrium officinale Hedge Mustard SISYOFF SE5 FO Sisymbrium sp Hedge Mustard Species SISY_SP FO Sisyrinchium albidum White Blue-eyed Grass SISYALB S1 FO Sisyrinchium angustifolium Stout Blue-eyed Grass SISYANG S4 FO Sisyrinchium montanum Common Blue-eyed Grass SISYMON S5 FO Sisyrinchium mucronatum Slender Blue-eyed Grass SISYMUC S4S5 FO Sisyrinchium sp Blue-eyed Grass Species SIRI_SP FO Sium suave Water-parsnip SIUMSUA S5 FO Smilax ecirrhata Upright Carrion Flower SMILECI S3? FO Smilax herbacea Herbaceous Carrion Flower SMILHER S4 VI Smilax hispida Bristly Greenbrier SMILHIS S4 VW Smilax illinoensis Illinois Carrion Flower SMILILL S2? VI Smilax lasioneura Hairy-nerved Carrion Flower SMILLAS S4 VI Smilax rotundifolia Common Greenbrier SMILROT S2 SH Smilax sp Greenbrier Species SMIL_SP VI Solanum carolinense Horse Nettle SOLACAR SE3 FO Solanum dulcamara Bittersweet Nightshade SOLADUL SE5 VW Solanum nigrum Black Nightshade SOLANIG SE1 FO Solanum physalifolium Hairy Nighshade SOLAPHY SE2 FO Solanum ptychanthum Eastern Black Nightshade SOLAPTY S5 FO

Monday, March 05, 2007 Page 45 of 52 Scientific Name Common Name Code S Rank Form Solanum rostratum Prickly Nightshade SOLAROS SE1 FO Solanum sp Nightshade Species SOLA_SP FO Solanum triflorum Cut-leaved Nightshade SOLATRI SE1 FO Solanum tuberosum Common Potato SOLATUB SE1 FO Solidago altissima var. altissima Tall Goldenrod SOLIALA S4? FO Solidago arguta var. arguta Sharp-leaved Goldenrod SOLIARA S3 FO Solidago bicolor White Goldenrod SOLIBIC S4? FO Solidago caesia Blue-stem Goldenrod SOLICAE S5 FO Solidago canadensis Canada Goldenrod SOLICAN S5 FO Solidago flexicaulis Zig-zag Goldenrod SOLIFLE S5 FO Solidago gigantea Giant Goldenrod SOLIGIG S5 FO Solidago hispida var. hispida Hairy Goldenrod SOLIHIS S5 FO Solidago houghtonii Houghton's Goldenrod SOLIHOU S2 FO Solidago juncea Early Goldenrod SOLIJUN S5 FO Solidago nemoralis ssp. nemoralis Gray Goldenrod SOLINEN S5 FO Solidago ohioensis Ohio Goldenrod SOLIOHI S4 FO Solidago patula Rough-leaved Goldenrod SOLIPAT S5 FO Solidago ptarmicoides Upland White Goldenrod SOLIPTA S5 FO Solidago puberula Downy Goldenrod SOLIPUB S2 FO Solidago riddellii Riddell's Goldenrod SOLIRID S3 FO Solidago rigida ssp. rigida Stiff-leaved Goldenrod SOLIRIR S3 FO Solidago rugosa ssp. rugosa Rough Goldenrod SOLIRUR S5 FO Solidago sempervirens Seaside Goldenrod SOLISEM SE2 FO Solidago simplex var. gillmanii Rand's Goldenrod SOLISIG S1 FO Solidago simplex var. ontarioensis Ontario Goldenrod SOLISIO S3? FO Solidago sp Goldenrod Species SOLI_SP FO Solidago speciosa var. rigidiuscula Showy Goldenrod SOLISPR S1 FO Solidago squarrosa Stout Goldenrod SOLISQU S4 FO Solidago uliginosa Marsh Goldenrod SOLIULI S5 FO Solidago ulmifolia var. ulmifolia Elm-leaved Goldenrod SOLIULU S1 FO Sonchus arvensis ssp. arvensis Field Sow-thistle SONCARA SE5 FO Sonchus arvensis ssp. uliginosus Perennial Sow-thistle SONCARU SE5 FO Sonchus asper ssp. asper Spiny-leaved Sow-thistle SONCASA SE5 FO Sonchus oleraceus Common Sow-thistle SONCOLE SE5 FO Sonchus palustris Marsh Sow-thistle SONCPAL SE1 FO Sonchus sp Sow-thistle Species SONC_SP FO Sorbaria sorbifolia False Spiraea SORBSOR SE4 SH Sorbus americana American Mountain-ash SORBAME S5 SH Sorbus aucuparia European Mountain-ash SORBAUC SE4 SH Sorbus decora Showy Mountain-ash SORBDEC S5 SH Sorbus sp Mountain-ash Species SORB_SP SH Sorghastrum nutans Indian Grass SORGNUT S4 GR Sorghum bicolor ssp. bicolor Sorghum SORGBIB SE1 GR Sorghum halepense Johnson Grass SORGHAL SE2 GR Sparganium americanum American Bur-reed SPARAME S4? FO Sparganium androcladum Branching Bur-reed SPARAND S1 FO Sparganium angustifolium Floating Bur-reed SPARANG S4? FO Sparganium emersum ssp. emersum Narrow-leaved Bur-reed SPAREME S5 FO Sparganium eurycarpum Giant Bur-reed SPAREUR S5 FO

Monday, March 05, 2007 Page 46 of 52 Scientific Name Common Name Code S Rank Form Sparganium fluctuans Water Bur-reed SPARFLU S4? FO Sparganium natans Small Bur-reed SPARNAT S5 FO Sparganium sp Bur-reed Species SPAR_SP FO Spartina patens Salt-marsh Grass SPARPAT SE1 GR Spartina pectinata Freshwater Cord Grass SPARPEC S4 GR Spartina sp Cord Grass Species SPTI_SP GR Spergula arvensis Spurrey SPERARV SE5 FO Spergularia media Salt-marsh Sand Spurrey SPERMED SE3 FO Spergularia rubra Red Sand Spurrey SPERRUB SE3? FO Sphenopholis intermedia Slender Wedge Grass SPHEINT S4S5 GR Sphenopholis nitida Shining Wedge Grass SPHENIT S1 GR Sphenopholis obtusata Prairie Wedge Grass SPHEOBT S1 GR Sphenopholis sp Wedge Grass Species SPHE_SP GR Spiraea alba Narrow-leaved Meadowsweet SPIRALB S5 SH Spiraea japonica Japanese Meadowsweet SPIRJAP SE1 SH Spiraea salicifolia Willow-leaved Meadowsweet SPIRSAL SE1 SH Spiraea sp Meadowsweet Species SPIR_SP SH Spiraea tomentosa Hardhack SPIRTOM S4S5 SH Spiraea X vanhouttei Bridal Wreath SPIRVAN SHBE1 SH Spiranthes casei Case's Ladies' Tresses SPIRCAS S4 FO Spiranthes cernua Nodding Ladies' Tresses SPIRCER S5 FO Spiranthes lacera var. gracilis Southern Slender Ladies' Tresses SPIRLAG S1 FO Spiranthes lacera var. lacera Northern Slender Ladies' Tresses SPIRLAL S4S5 FO Spiranthes lucida Shining Ladies' Tresses SPIRLUC S4 FO Spiranthes magnicamporum Great Plains Ladies' Tresses SPIRMAG S3 FO Spiranthes ochroleuca Yellow Ladies' Tresses SPIROCH S2 FO Spiranthes ovalis var. erostellata Oval Ladies' Tresses SPIROVE S1 FO Spiranthes romanzoffiana Hooded Ladies' Tresses SPIRROM S5 FO Spiranthes sp Ladies' Tresses Species SPIT_SP FO Spirodela polyrhiza Great Duckweed SPIRPOL S5 FO Sporobolus asper Rough Dropseed SPORASP S1S2 GR Sporobolus cryptandrus Sand Dropseed SPORCRF S4 GR Sporobolus heterolepis Northern Dropseed SPORHET S3 GR Sporobolus neglectus Small Rush Grass SPORNEG S4 GR Sporobolus vaginiflorus Poverty Dropseed SPORVAG S4 GR Stachys hispida Rough Hedge-nettle STACHIS S4S5 FO Stachys palustris Marsh Hedge-nettle STACPAL SE5 FO Stachys pilosa var. arenicola Sand Hedge-nettle STACPIA S1 FO Stachys sp Hedge-nettle Species STAC_SP FO Staphylea trifolia Bladdernut STAPTRI S4 SH Stellaria borealis ssp. borealis Northern Stitchwort STELBOB S5 FO Stellaria graminea Grass-leaved Stitchwort STELGRA SE5 FO Stellaria longifolia Long-leaved Stitchwort STELLON S5 FO Stellaria longipes Long-stalked Stitchwort STELLGP S5 FO Stellaria media Common Stitchwort STELMED SE5 FO Stellaria pallida Lesser Stitchwort STELPAL SE1 FO Stellaria sp Stitchwort Species STEL_SP FO Stipa comata Tufted Bunch Grass STIPCOM S1 GR Stipa sp Stipa Species STIP_SP GR

Monday, March 05, 2007 Page 47 of 52 Scientific Name Common Name Code S Rank Form Stipa spartea Porcupine Grass STIPSPA S3 GR Streptopus roseus Rose Twisted Stalk STREROS S5 FO Strophostyles helvula Trailing Wild Bean STROHEL S3 FO Stylophorum diphyllum Wood Poppy STYLDIP S1 FO Suaeda calceoliformis Plains Sea-blite SUAECAL S2 FO Symphoricarpos albus Snowberry SYMPALB S4S5 SH Symphoricarpos occidentalis Wolfberry SYMPOCC SE3 SH Symphoricarpos orbiculatus Coralberry SYMPORB SE1 SH Symphytum asperum Prickly Comfrey SYMPASP SE2 FO Symphytum officinale ssp. officinale Common Comfrey SYMPOFO SE5 FO Symplocarpus foetidus Skunk Cabbage SYMPFOE S5 FO Syringa vulgaris Common Lilac SYRIVUL SE5 SH Taenidia integerrima Yellow Pimpernel TAENINT S4 FO Tanacetum vulgare Tansy TANAVUL SE5 FO erythrospermum Red-seeded Dandelion TARAERY SE5 FO Taraxacum officinale Common Dandelion TARAOFF SE5 FO Taraxacum palustre Marsh Dandelion TARAPAL SE5 FO Taraxacum sp Dandelion Species TARA_SP FO Taxus canadensis Canada Yew TAXUCAN S4 SH Tephrosia virginiana Goat's Rue TEPHVIR S1 FO Teucrium canadense ssp. canadense Wood Germander TEUCCAC S5? FO Teucrium canadense ssp. viscidum Hairy Germander TEUCCAV SU FO Thalictrum dasycarpum Purple Meadow-rue THALDAS S4? FO Thalictrum dioicum Early Meadow-rue THALDIO S5 FO Thalictrum pubescens Tall Meadow-rue THALPUB S5 FO Thalictrum revolutum Waxy Meadow-rue THALREV S2 FO Thalictrum sp Meadow-rue Species THAL_SP FO Thalictrum thalictroides Rue Anemone THALTHA S3 FO Thalictrum venulosum Veiny Meadow-rue THALVEN S5? FO Thaspium barbinode Bearded Meadow-parsnip THASBAR S1 FO Thaspium trifoliatum var. aureum Smooth Meadow-parsnip THASTRA S2 FO Thelypteris noveboracensis Fern THELNOV S4S5 FE Thelypteris palustris var. pubescens Marsh Fern THELPAP S5 FE Thelypteris simulata Fern THELSIM S1 FE Thelypteris sp Thelypteris Species THEL_SP FE Thladiantha dubia Golden Creeper THLADUB SE2 VI Thlaspi arvense Field Penny-cress THLAARV SE5 FO Thuja occidentalis Eastern White Cedar THUJOCC S5 TR Thymus pulegioides Thyme THYMPUL SE1 FO Tiarella cordifolia Foamflower TIARCOR S5 FO Tilia americana Basswood TILIAME S5 TR Tofieldia glutinosa ssp. brevistyla Sticky False Asphodel TOFIGLB S4? FO Torilis japonica Japanese Hedge Parsley TORIJAP SE4 FO Torreyochloa fernaldii Pale Manna Grass TORRFER S4 GR Torreyochloa pallida Torrey's Manna Grass TORRPAL S2 GR Tradescantia ohiensis Common Spiderwort TRADOHI S2 FO Tradescantia virginiana Virginia Spiderwort TRADVIR SE1 FO Tragopogon dubius Doubtful Goat's-beard TRAGDUB SE5 FO Tragopogon porrifolius Common Salsify TRAGPOR SE4? FO

Monday, March 05, 2007 Page 48 of 52 Scientific Name Common Name Code S Rank Form Tragopogon pratensis ssp. pratensis Meadow Goat's-beard TRAGPRP SE5 FO Tragopogon sp Goat's-beard Species TRAG_SP FO Tree sp Tree Species TREE_SP TR Triadenum fraseri Fraser's St. John's-wort TRIAFRA S5 FO Tribulus terrestris Land Caltrop TRIBTER SE1 FO Trichostema brachiatum False Pennyroyal TRICBRA S4 FO Trichostema dichotomum Bastard Pennyroyal TRICDIC S1 FO Tridens flavus Purpletop TRIDFLA SE1 GR Trientalis borealis ssp. borealis Starflower TRIEBOB S5 FO Trifolium arvense Rabbit-foot Clover TRIFARV SE4 FO Trifolium aureum Yellow Clover TRIFAUE SE5 FO Trifolium campestre Large Hop Clover TRIFCAM SE5 FO Trifolium dubium Suckling Clover TRIFDUB SE4 FO Trifolium hybridum ssp. elegans Alsike Clover TRIFHYE SE5 FO Trifolium pratense Red Clover TRIFPRA SE5 FO Trifolium repens White Clover TRIFREP SE5 FO Trifolium sp Clover Species TRIF_SP FO Triglochin maritimum Seaside Arrow Grass TRIGMAR S5 FO Triglochin palustre Marsh Arrow Grass TRIGPAL S5 FO Triglochin sp Arrow Grass Species TRIG_SP FO Trillium cernuum Nodding Trillium TRILCER S5 FO Trillium erectum Red Trillium TRILERE S5 FO Trillium flexipes Bent Trillium TRILFLE S1 FO Trillium grandiflorum White Trillium TRILGRA S5 FO Trillium sp Trillium Species TRIL_SP FO Trillium undulatum Painted Trillium TRILUND S5? FO Triodanis perfoliata Clasping Bellwort TRIOPRF S4 FO Triosteum angustifolium Yellow Horse-gentian TRIOANG S1 FO Triosteum aurantiacum Wild Coffee TRIOAUR S5 FO Triosteum perfoliatum Perfoliate Horse Gentain TRIOPER S1 FO Triosteum sp Horse Gentian Species TRIO_SP FO Triphora trianthophora Nodding Pogonia TRIPTRI S1 FO Triplasis purpurea Sand Grass TRIPPUR S4? GR Trisetum melicoides Melica-leaf False Oats TRISMEL S4 GR Trisetum spicatum Narrow False Oats TRISSPI S4 GR Triticum aestivum Common Wheat TRITAES SE1 GR Tsuga canadensis Eastern Hemlock TSUGCAN S5 TR Tussilago farfara Coltsfoot TUSSFAR SE5 FO Typha angustifolia Narrow-leaved Cattail TYPHANG SE5 FO Typha latifolia Broad-leaved Cattail TYPHLAT S5 FO Typha sp Cattail Species TYPH_SP FO Typha X glauca Hybrid Cattail TYPHGLA SHBE5 FO Ulmus americana American Elm ULMUAME S5 TR Ulmus pumila Siberian Elm ULMUPUM SE3 TR Ulmus rubra Slippery Elm ULMURUB S5 TR Ulmus sp Elm Species ULMU_SP TR Ulmus thomasii Rock Elm ULMUTHO S4? TR Urtica dioica ssp. dioica European Stinging Nettle URTIDID SE2 FO Urtica dioica ssp. gracilis Slender Stinging Nettle URTIDIG S5 FO

Monday, March 05, 2007 Page 49 of 52 Scientific Name Common Name Code S Rank Form Urtica sp Nettle Species URTI_SP FO Urtica urens Dog Nettle URTIURE SE1 FO Utricularia cornuta Horned Bladderwort UTRICOR S5 FO Utricularia geminiscapa Hidden-fruited Bladderwort UTRIGEM S3 FO Utricularia gibba Humped Bladderwort UTRIGIB S4 FO Utricularia intermedia Flat-leaved Bladderwort UTRIINT S5 FO Utricularia minor Lesser Bladderwort UTRIMIN S5 FO Utricularia purpurea Spotted Bladderwort UTRIPUR S4 FO Utricularia resupinata Inverted Bladderwort UTRIRES S4 FO Utricularia sp Bladderwort Species UTRI_SP FO Utricularia vulgaris Common Bladderwort UTRIVUL S5 FO Uvularia grandiflora Large-flowered Bellwort UVULGRA S5 FO Uvularia perfoliata Perfoliate Bellwort UVULPER S1 FO Uvularia sessilifolia Sessile-leaved Bellwort UVULSES S4 FO Uvularia sp Bellwort Species UVUL_SP FO Vaccaria hispanica Spanish Cowherb VACCHIS SE3 FO Vaccinium angustifolium Low-sweet Blueberry VACCANG S5 SH Vaccinium corymbosum Highbush Blueberry VACCCOR S4 SH Vaccinium macrocarpon Large Cranberry VACCMAC S4S5 SH Vaccinium myrtilloides Velvetleaf Blueberry VACCMYR S5 SH Vaccinium oxycoccos Small Cranberry VACCOXY S5 SH Vaccinium pallidum Dryland Blueberry VACCPAL S4 SH Vaccinium sp Blueberry Species VACC_SP SH Vaccinium stamineum Deerberry VACCSTA S1 SH Valeriana edulis ssp. ciliata Taprooted Valerian VALEEDC S1 FO Valeriana officinalis Common Valerian VALEOFF SE3 FO Valeriana sitchensis ssp. uliginosa Sitka Valerian VALESIU S2 FO Valerianella umbilicata Navel-shaped Corn-salad VALEUMB S1 FO Vallisneria americana Eel-grass VALLAME S5 FO Verbascum blattaria Moth Mullein VERBBLA SE5 FO Verbascum phlomoides Clasping Mullein VERBPHL SE1 FO Verbascum thapsus Common Mullein VERBTHA SE5 FO Verbena bracteata Large-bracted Vervain VERBBRA S4? FO Verbena hastata Blue Vervain VERBHAS S5 FO Verbena simplex Narrow-leaved Vervain VERBSIM S4 FO Verbena sp Vervain Species VERB_SP FO Verbena stricta Hoary Vervain VERBSTR S4 FO Verbena urticifolia White Vervain VERBURT S5 FO Verbesina alternifolia Wing-stem VERBALT S2S3 FO Vernonia gigantea Giant Ironweed VERNGIG S3? FO Veronica americana American Speedwell VEROAME S5 FO Veronica anagallis-aquatica Water Speedwell VEROANA SE5 FO Veronica arvensis Corn Speedwell VEROARV SE5 FO Veronica austriaca ssp. teucrium Lance-leaved Speedwell VEROAUT SE1 FO Veronica beccabunga Bachbungen's Speedwell VEROBEC SE2 FO Veronica catenata Speedwell VEROCAT S4 FO Veronica chamaedrys Germander Speedwell VEROCHA SE3 FO Veronica filiformis Hair-like Speedwell VEROFIL SE2 FO Veronica longifolia Long-leaved Speedwell VEROLON SE3 FO

Monday, March 05, 2007 Page 50 of 52 Scientific Name Common Name Code S Rank Form Veronica officinalis Common Speedwell VEROOFF SE5 FO Veronica peregrina ssp. peregrina Purslane Speedwell VEROPEP S5 FO Veronica peregrina ssp. xalapensis Western Purslane Speedwell VEROPEX S4 FO Veronica persica Bird's-eye Speedwell VEROPES SE4 FO Veronica polita Wayside Speedwell VEROPOL SE4 FO Veronica scutellata Marsh Speedwell VEROSCU S5 FO Veronica serpyllifolia ssp. serpyllifolia Thyme-leaved Speedwell VEROSES SE5 FO Veronica sp Speedwell Species VERO_SP FO Veronica verna Spring Speedwell VEROVER SE3 FO Veronicastrum virginicum Culver's-root VEROVRG S2 FO Viburnum acerifolium Maple-leaved Viburnum VIBUACE S5 SH Viburnum cassinoides Wild Raisin VIBUCAS S5 SH Viburnum lantana Wayfaring Tree VIBULAN SE2 SH Viburnum lantanoides Hobble Bush VIBULAO S5 SH Viburnum lentago Nannyberry VIBULEN S5 SH Viburnum opulus European Highbush Cranberry VIBUOPU SE4 SH Viburnum rafinesquianum Downy Arrow-wood VIBURAF S5 SH Viburnum recognitum Southern Arrow-wood VIBUREC S4 SH Viburnum sp Viburnum Species VIBU_SP SH Viburnum trilobum Highbush Cranberry VIBUTRI S5 SH Vicia americana Purple Vetch VICIAME S5 VI Vicia caroliniana Carolina Vetch VICICAR S2 VI Vicia cracca Cow Vetch VICICRA SE5 VI Vicia hirsuta Tiny Vetch VICIHIR SE1 VI Vicia sativa ssp. nigra Common Vetch VICISAN SE5 VI Vicia sp Vetch Species VICI_SP VI Vicia tetrasperma Sparrow Vetch VICITET SE5 VI Vicia villosa Hairy Vetch VICIVIL SE5 VI Vinca minor Periwinkle VINCMIN SE5 FO Vine sp Vine Species VINE_SP VI Viola adunca Hooked-spur Violet VIOLADU S4S5 FO Viola affinis Le Conte's Violet VIOLAFF S4? FO Viola arvensis Field Pansy VIOLARV SE4 FO Viola blanda Sweet White Violet VIOLBLA S4S5 FO Viola canadensis Canada Violet VIOLCAN S5 FO Viola conspersa Dog Violet VIOLCON S5 FO Viola cucullata Marsh Blue Violet VIOLCUC S5 FO Viola lanceolata Lance-leaved Violet VIOLLAN S4 FO Viola macloskeyi ssp. pallens Smooth White Violet VIOLMAP S5 FO Viola nephrophylla Northern Bog Violet VIOLNEP S4 FO Viola odorata English Violet VIOLODO SE2 FO Viola palmata var. palmata Early Blue Violet VIOLPAP S2 FO Viola pedata Bird's-foot Violet VIOLPED S1 FO Viola pedatifida Prairie Violet VIOLPDF S1 FO Viola pubescens Yellow Violet VIOLPUB S5 FO Viola renifolia Kidney-leaf Violet VIOLREN S5 FO Viola rostrata Long-spurred Violet VIOLROS S5 FO Viola rotundifolia Round-leaved Violet VIOLROT S1 FO Viola sagittata var. sagittata Arrow-leaved Violet VIOLSAS S4 FO

Monday, March 05, 2007 Page 51 of 52 Scientific Name Common Name Code S Rank Form Viola selkirkii Great-spurred Violet VIOLSEL S5 FO Viola septentrionalis Northern Blue Violet VIOLSEP SU FO Viola sororia Common Blue Violet VIOLSOR S5 FO Viola sp Violet Species VIOL_SP FO Viola striata Cream Violet VIOLSTR S3 FO Viola tricolor Johnny-jump-up VIOLTRI SE2 FO Viola X brauniae Hybrid Violet VIOLBRA SHB1 FO Vitis aestivalis Summer Grape VITIAES S4 VW Vitis labrusca Fox Grape VITILAB S1 VW Vitis riparia Riverbank Grape VITIRIP S5 VW Vitis sp Grape Species VITI_SP VW Vitis vulpina Sweet Scented Grape VITIVUL S1 VW Vulpia myuros Mouse-tail Fescue VULPMYU SE1 GR Vulpia octoflora Six-weeks Fescue VULPOCT S2 GR Waldsteinia fragarioides Barren Strawberry WALDFRA S5 FO Wolffia borealis Dotted Water Meal WOLFBOR S4S5 FO Wolffia columbiana Columbia Water Meal WOLFCOL S4S5 FO ilvensis Rusty Woodsia WOODILV S5 FE Woodsia obtusa ssp. obtusa Blunt-lobed Woodsia WOODOBO S1 FE Woodsia oregana ssp. cathcartiana Oregon Woodsia WOODORC S3 FE Woodsia sp Woodsia Species WOOD_SP FE Woodwardia virginica Virginia Chain Fern WOODVIR S4 FE Woody vine sp Woody Vine Species WOVI_SP VW Xanthium spinosum Spiny Cocklebur XANTSPI SE2? FO Xanthium strumarium Cocklebur XANTSTR S5 FO Xyris difformis Two-formed Yellow-eyed-grass XYRIDIF S3? FO Xyris montana Northern Yellow-eyed-grass XYRIMON S4 FO Zannichellia palustris Horned Pondweed ZANNPAL S4 FO Zanthoxylum americanum Prickly-ash ZANTAME S5 SH Zea mays Corn ZEA_MAY SE2 GR Zigadenus elegans ssp. glaucus White Camass ZIGAELG S4 FO Zizania aquatica Southern Wild Rice ZIZAAQU S3 GR Zizania palustris Northern Wild Rice ZIZAPAL S4 GR Zizania sp Wild Rice Species ZIZA_SP GR Zizia aptera Heart-leaved Alexanders ZIZIAPT S1 FO Zizia aurea Golden Alexanders ZIZIAUR S5 FO

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