Oak Ridge Reservation Vascular Flora

GENUS SPECIES COMMON NAME Abutilon theophrasti velvet leaf Acalypha gracilens narrow-leaved three-seeded mercury Acalypha rhomboidea three-seeded mercury Acalypha virginica Virginia three-seeded mercury Acer drummondii* Drummond red maple Acer negundo box-elder Acer rubrum red maple Acer saccharinum silver maple Acer saccharum sugar maple Achillea millefolium yarrow Aconitum uncinatum monk's hood Acorus americanus sweet-flag Actaea pachypoda doll's eyes Adiantum pedatum maidenhair fern Aesculus flava yellow buckeye Aesculus sylvatica painted buckeye Agalinis auriculata* earleaf foxglove Agalinis purpurea purple gerardia Agalinis tenuifolia slender gerardia Agastache nepetoides yellow giant-hyssop Ageratina altissima white snakeroot Ageratina aromatica - Agrimonia parviflora southern agrimony Agrimonia pubescens downy agrimony Agrimonia rostellata woodland agrimony Agrostemma githago corncockle Agrostis hyemalis hairgrass Agrostis perennans upland bentgrass Agrostis stolonifera creeping bentgrass Ailanthus altissima tree-of-heaven Albizia julibrissin mimosa

1 of 35 Alisma subcordatum water-plaintain Allium ampeloprasum garlic Allium canadense wild garlic Allium cernuum nodding onion Allium vineale field garlic Alnus serrulata common alder Alopecurus carolinianus Carolina-foxtail Amaranthus hybridus amaranth Amaranthus spinosus* spiny amaranth Ambrosia artemisiifolia ragweed Ambrosia bidentata ragweed Ambrosia trifida ragweed Amelanchier arborea downy juneberry Amelanchier laevis smooth juneberry Amianthium muscaetoxicum fly poison Ammannia coccinea toothcup Amorpha fruticosa false indigo Ampelopsis cordata raccoon-grape Amphicarpaea bracteata hog-peanut Amsonia tabernaemontana willow amsonia Anagallis arvensis pimpernel Andropogon gerardii big bluestem Andropogon gyrans* - Andropogon ternarius silver bluestem Andropogon virginicus Virginia broomsedge Anemone quinquefolia wood anemone Anemone virginiana thimble weed Angelica venenosa hairy angelica Antennaria plantaginifolia pussy-toes Antennaria solitaria pussy-toes Anthoxanthum odoratum sweet vernal grass Apios americana ground-nut Aplectrum hyemale putty root Apocynum cannabinum dogbane Aquilegia canadensis columbine Arabidopsis thaliana mouse-ear cress

2 of 35 Arabis canadensis sicklepod Arabis laevigata smooth rockcress Aralia racemosa spikenard Aralia spinosa devil's walking stick Arctinium minus burdock Arenaria patula sandwort Arenaria serpyllifolia thyme-leaf sandwort Arisaema dracontium green dragon Arisaema triphyllum jack-in-the-pulpit Aristida dichotoma churchmouse three-awn grass Aristida longespica slimspike three-awn grass Aristida oligantha prairie three-awn grass Aristida purpurascens purple three-awn grass Aristida virigata* perenial three-awn grass Aristolochia macrophylla Dutchman's pipe Aristolochia serpentaria Virginia-snakeroot Aronia arbutifolia hairy chokeberry Arthraxon hispidus - Aruncus dioicus goat's beard Arundinaria gigantea cane Asarum canadense wild ginger Asclepias amplexicaulis blunt-leaved milkweed Asclepias incarnata swamp milkweed Asclepias quadrifolia - Asclepias syriaca common milkweed Asclepias tuberosa butterfly-weed Asclepias variegata white milkweed Asclepias verticillata whorled milkweed Asclepias viridiflora milkweed Asimina triloba paw-paw Asparagus officinalis asparagus Asplenium platyneuron ebony spleenwort Asplenium resiliens black-stemmed speenwort Asplenium rhizophyllum walking fern Asplenium ruta-muraria wall-rue Asplenium trichomanes maidenhair spleenwort

3 of 35 Asplenium x ebenoides* Scott's spleenwort Aster cordifolius heart-leaved aster Aster divaricatus white wood aster Aster dumosus bushy aster Aster laevis smooth aster Aster lateriflorus calico aster Aster novae-anglae New England aster Aster oblongifolius aromatic aster Aster ontarionis bottomland aster Aster patens late purple aster Aster pilosus downy aster Aster shortii midwestern heart-leaved aster Aster surculosos recurved aster Aster undulatus clasping heart-leaved aster Aster urophyllus arrow-leaved aster Astilbe biternata false goat's beard Astragalus canadensis milk vetch Athyrium filix-femina lady fern Aureolaria flava* yellow false-foxglove Aureolaria laevigata smooth false-foxglove Aureolaria patula spreading false-foxglove Aureolaria virginica downy false-foxglove Barbarea verna early winter-cress Barbarea vulgaris yellow rocket Bartonia paniculata screwstem Belamcanda chinensis blackberry lily Berberis canadensis* American barberry Berberis thunbergii* Japanese barberry Berchemia scandens* supple-jack Betula nigra river birch Bidens cernua stick-tights Bidens frondosa beggar-ticks Bidens polylepis Ozark tickseed Bidens tripartita stick-tight Bidens bipinnata Spanish-needles Bignonia capreolata cross-vine

4 of 35 Blephilia ciliata woodmint Boehmeria cylindrica false-nettle Botrychium biternatum sparse-lobed grape fern Botrychium dissectum common grape fern Botrychium virginianum rattlesnake fern Bouteloua curtipendula side-oats grama grass Brachyeletrum erectum - Brassica rapa rape mustard Bromus altiissimus - Bromus commutatus common brome grass Bromus hordeaceus soft chess Bromus japonicus Japanese chess Bromus pubescens - Bromus tectorum brome grass Buglossoides arvense - Bulbostylis capillaris sedge Bumelia lycioides smooth southern buckthorn Buxus sempervirens* boxwood Cacalia atriplicifolia pale Indian-plantain Cacalia muehlenbergii* great Indian-plantain Calamintha nepeta basil-thyme Callitriche heterophylla water star-wort Calycanthus floridus sweetshrub Calystegia sepium hedge bindweed Calystegia spithamaea low bindweed Camassia scilloides* wild hyacinth Campanula americana tall bellwort Campanula divaricata southern harebell Campsis radicans trumpet-creper Capsella bursa-pastoris sheperd's purse Cardamine douglassii pink spring-cress Cardamine hirsuta hairy bittercress Cardamine parviflora - Cardamine pensylvanica Pennsylvania bittercresss Cardamine rhombiodea spring-cress Carex abscondita thicket sedge

5 of 35 Carex albicans sedge Carex albicans sedge Carex albolutescens light-colored sedge Carex albursina sedge Carex amphibola sedge Carex atlantica sedge Carex atlantica Howe's sedge Carex baileyi Bailey's sedge Carex blanda sedge Carex bromoides sedge Carex bushii* sedge Carex caroliniana Carolina sedge Carex cephalophora sedge Carex cherokeensis Cherokee sedge Carex complanata sedge Carex conjuncta sedge Carex crinita drooping sedge Carex crus-corvi sedge Carex debilis necklace sedge Carex digitalis sedge Carex eburnea black-fruited sedge Carex echinata* little prickly sedge Carex festucacea sedge Carex flaccidula* - Carex frankii Frank's sedge Carex gracillima* graceful sedge Carex granularis granular sedge Carex gravida heavy sedge Carex grayi Gray's sedge Carex grisea sedge Carex intumescens intumescent sedge Carex jamesii sedge Carex laevivaginata sedge Carex laxiculmis* sedge Carex laxiflora broad-leaved sedge Carex leptalea sedge

6 of 35 Carex louisianica Louisiana sedge Carex lupulina large hop sedge Carex lurida smaller hop sedge Carex meadii sedge Carex muhlenbergii sedge Carex nigromarginata black-margined sedge Carex normalis sedge Carex oligocarpa sedge Carex oxylepis sedge Carex oxylepis sedge Carex pensylvanica sedge Carex platyphylla sedge Carex prasina drooping sedge Carex projecta sedge Carex purpurifera sedge Carex retroflexa sedge Carex rosea sedge Carex scoparia sedge Carex shortiana sedge Carex squarrosa round-headed sedge Carex stipata stipatate sedge Carex striatula sedge Carex styloflexa sedge Carex swanii Swan's sedge Carex tribuloides sedge Carex venusta sedge Carex virescens sedge Carex vulpinoidea fox sedge Carex willdenowii sedge Carpinus caroliniana ironwood Carya cordiformis bitternut hickory Carya glabra pignut hickory Carya ovalis sweet pignut hickory Carya ovata shagbark hickory Carya tomentosa mockernut hickory Castanea dentata American chestnut

7 of 35 Catalpa bignonioides catalpa Catalpa speciosa* northern catalpa Caulophyllum thalictroides blue cohosh Ceanothus americanus New Jersey tea Celastrus orbiculatus Oriental bittersweet Celastrus scandens climbing bittersweet Celtis laevigata smooth hackberry Celtis occidentalis common hackberry Celtis tenuifolia* dwarf hackberry Centaurea cyanus bachelor's button Centaurea maculosa bachelor's button Centrosema virginianum butterfly-pea Cephalanthus occidentalis buttonbush Cerastium fontanum mouse-ear chickweed Cerastium glomeratum mouse-ear chickweed Ceratophyllum demersum hornwort Cercis canadensis redbud Chaennorrhinum minus lesser toadflax Chaerophyllum procumbens spreading chervil Chaerophyllum tainturieri wild cervil Chamaecrista fasciculata partridge-pea Chamaecrista nictitans sensitive-pea Chamaelirium luteum fairy wand Chasmanthium latifolium spangle grass Chasmanthium laxum slender spike grass Chasmanthium sessiliflorum long-leaf spike grass Cheilanthes alabamensis Alabama lipfern Cheilanthes lanosa hairy lipfern Chelone glabra white turtlehead Chenopodium album white goosefoot Chenopodium ambrosioides fragrant goosefoot Chimaphila maculata striped pipsissewa Chionanthus virginicus fringe-tree Chrysanthemum leucanthemum daisy Cichorium intybus chicory Cicuta maculata water-hemlock

8 of 35 Cimicifuga racemosa black cohosh Cimicifuga rubifolia Appalachian bugbane Cinna arundinacea reedgrass Circaea lutetiana larger enchanter's-nightshade Cirsium arvense Canada thistle Cirsium discolor thistle Cirsium muticum swamp thistle Cirsium vulgare bull thistle Claytonia caroliniana broad-leaved spring beauty Claytonia virginica narrow-leaved spring beauty Clematis versicolor* clematis Clematis viorna leather flower Clematis virginiana virgin's bower Clitoria mariana butterfly-pea Cocculus carolinus snailseed Collinsonia canadensis stoneroot Collinsonia verticillata whorled stoneroot Commandra umbellata bastard toad-flax Commelina communis common dayflower Commelina erecta erect dayflower Commelina virginica Virginia dayflower Conoclinium coelestinum mist flower Conopholis americana squawroot Consolida ambigua rocket larkspur Convallaria majalis lily-of-the-valley Conyza canadensis horseweed Corallorrhiza odontorhiza autumn coralroot Corallorrhiza wisteriana spring coralroot Coreopsis auriculata lobed tickseed Coreopsis lanceolata* longstalk-tickseed Coreopsis major wood tickseed Coreopsis tinctoria plains tickseed Coreopsis tripteris tall tickseed Cornus amomum silky dogwood Cornus drummondii rough-leaved dogwood Cornus florida flowering dogwood

9 of 35 Cornus foemina southern swamp dogwood Coronilla varia crown-vetch Corydalis flavula short-spurred corydalis Corylus americana American hazelnut Crataegus calpodenron hawthorn Crataegus crus-galli hawthorn Crataegus marshallii* parsley hawthorn Crepis pulchra hawk's beard Crotalaria sagittalis weedy rattlebox Croton glandulosus tooth-leaved croton Croton monanthogynus - Cryptotaenia canadensis honewort Cunila origanoides dittany Cuphea viscosissima clammy cuphea Cuscuta campestris field dodder Cuscuta compacta bracted dodder Cuscuta gronovii dodder Cynanchum laeve sandvine Cynodon dactylon Bermuda grass Cynoglossum virginianum wild comfrey Cyperus acuminatus umbrella sedge Cyperus croceus umbrella sedge Cyperus echinatus umbrella sedge Cyperus esculentus chufa Cyperus ferruginescens umbrella sedge Cyperus flavescens umbrella sedge Cyperus lancastriensis umbrella sedge Cyperus odoratus umbrella sedge Cyperus pseudovegetus umbrella sedge Cyperus retrofractus umbrella sedge Cyperus strigosus umbrella sedge Cypripedium acaule pink lady's slipper Cystopteris bulbifera bulbet fern Cystopteris protrusa southern fragile fern Dactylis glomerata orchard grass Danthonia spicata poverty grass

10 of 35 Dasystoma macrophylla mullein-foxglove Datura stramonium jimson weed Daucus carota Queen Anne's lace Delphinium exaltatum tall larkspur Delphinium tricorne dwarf larkspur Dennstaedtia punctilobula hay-scented fern Dentaria diphylla toothwort Dentaria heterophylla pepperwort Dentaria laciniata cut-leaved toothwort Dentaria multifida fine-leaved toothwort Deparia acrostichoides silvery glade fern Desmanthus illinoesis bundleflower Desmodium canadense* - Desmodium canescens tick-trefoil Desmodium ciliare tick-trefoil Desmodium cuspidatum tick-trefoil Desmodium glutinosum whorled tick-trefoil Desmodium laevigatum* smooth tick-trefoil Desmodium marilandicum narrow tick-trefoil Desmodium nudiflorum naked-flowered tick-trefoil Desmodium nuttallii Nuttall's tick-trefoil Desmodium paniculatum panicled tick-trefoil Desmodium pauciflorum few-flowered tick-trefoil Desmodium rotundifolium prostrate tick-trefoil Desmodium viridiflorum tick-trefoil Dianthus armeria deptford pink Diarrhena americana* - Diervilla lonicera bush honeysuckle Digitaria filiformis crabgrass Digitaria ischaemum smooth crabgrass Digitaria sanguinalis crabgrass Diodia teres rough buttonweed Diodia virginiana Virginia buttonweed Dioscorea batatas Chinese yam Dioscorea villosa wild yam Diospyros virginiana persimmon

11 of 35 Diphasiastrum digitatum ground cedar Diplazium pycnocarpon glade fern Dipsacus fullonum teasel Dirca plaustris leatherwood Disporum lanuginosum Mandarin lily Disporum maculatum* Mandarin lily Dodecatheon meadia shooting star Doellingeria infirmus entire-leaved aster Draba brachycarpa short-fruited whitlow-grass Draba ramosissima branched whitlow grass Draba verna whitlow grass Dryopteris intermedia fancy woodfern Dryopteris marginalis marginal woodfern Duchesnea indica barren strawberry Echinacea purpurea purple coneflower Echinochloa crusgalli barnyard grass Echinochloa muricata barnyard grass Eclipta prostrata yerba-de-tajo Elaeagnus pungens oleaster Elaeagnus umbellata oleaster Eleocharis acicularis spike-rush Eleocharis erythropoda spike-rush Eleocharis obtusa spike-rush Eleocharis palustris spike-rush Eleocharis parvula spike-rush Eleocharis quadrangulata spike-rush Eleocharis tenuis spike-rush Elephantopus carolinianus elephant's foot Elephantopus tomentosus elephant's foot Eleusine indica goosegrass Elodea canadensis common water-weed Elodea nuttallii free-flowered water-weed Elymus hystrix bottlebrush-grass Elymus villosus downy wild rye Elymus virginicus wild rye Elymus virginicus wild rye

12 of 35 Epifagus virginiana beech drops Epigaea repens trailing arbutus Epilobium coloratum willow-herb Equisetum arvense field horsetail Equisetum hyemale scouring rush Eragrostis capillaris* - Eragrostis cilianensis lovegrass Eragrostis curvula South African lovegrass Eragrostis frankii - Eragrostis hypnoides creeping lovegrass Eragrostis pectinacea Carolina lovegrass Eragrostis spectabilis tumblegrass Erechtites hieracifolia pilewort Erianthus alopecuroides beardgrass Erianthus giganteus tall beardgrass Erigenia bulbosa salt-and-pepper Erigeron annuus annual fleabane Erigeron philadelphicus fleabane Erigeron pulchellus Robin's plantain Erigeron strigosus fleabane Eryngium yuccifolium* rattlesnake-master Erysimum cheiranthoides worm-seed mustard Erythronium americanum trout-lily Erythronium umbilicatum trout-lily Euonymus americanus heart's-a-bursting Euonymus atropurpureus wahoo Eupatorium album white eupatorium Eupatorium altissimum tall eupatorium Eupatorium capillifolium dog-fennel Eupatorium fistulosum Joe-Pye-weed Eupatorium hyssopifolium narrow-leaved snakeroot Eupatorium perfoliatum boneset Eupatorium pilosum ragged eupatorium Eupatorium purpureum woodland Joe-Pye-weed Eupatorium rotundifolium round-leaved snakeroot Eupatorium serotinum acuminate-leaved snakeroot

13 of 35 Eupatorium sessilifolium upland boneset Euphorbia corollata flowering spurge Euphorbia dentata toothed spurge Euphorbia heterophylla fire-on-the-mountain Euphorbia humistrata spurge Euphorbia maculata nodding spurge Euphorbia mercurialina Cumberland spurge Euphorbia nutans eyebane Euthamia graminifolia common flat-topped goldenrod Fagus grandifolia American beech Festuca arundinacea meadow fescue Festuca pratensis fescue Festuca rubra red fescue Festuca subverticillata woodland fescue Fimbristylis autumnalis - Fleishmannia incarnata pink eupatorium Fothergilla major witch-alder Fragaria virginiana wild strawberry Fraxinus americana white ash Fraxinus pennsylvanica green ash Fraxinus quadrangulata blue ash Galactia volubilis milk pea Galax urceolata galax Galearis spectabilis showy orchis Galium aparine cleavers Galium circaezans wild licorice Galium obtusum blunt-leaved bedstraw Galium parisiense - Galium pedemontanum narrow bedstraw Galium pilosum hairy bedstraw Galium tinctorium marsh bedstraw Galium triflorum fragrant bedstraw Gaultheria procumbens wintergreen Gaura biennis biennial gaura Gaura filipes threadstalk gaura Gaylussacia baccata black huckleberry

14 of 35 Gentiana saponaria soap gentian Gentiana villosa hairy gentain Gentianella quinquefolia stiff gentian Geranium carolinianum Carolina cranesbill Geranium columbinum longstalk crane's-bill Geranium maculatum wild geranium Geum canadense white avens Geum vernum early avens Geum virginianum small-flowered avens Glechoma hederacea ground-ivy Gleditsia triacanthos honey locust Glyceria striata striate mannagrass Gnaphalium helleri* everlasting Gnaphalium obtusifolium catfoot Gnaphalium purpureum purple cudweed Goodyera pubescens downy rattlesnake-plantain Gratiola neglecta hedge-hyssop Gratiola virginiana Virginia hedge-hyssop Hackelia virginiana beggar's lice Hamamelis virginiana witch-hazel Hedeoma pulegioides American pennyroyal Hedera helix* English ivy Hedyotis caerulea bluets Hedyotis crassifolia - Hedyotis longifolia long-leaved bluets Hedyotis nigricans - Hedyotis nutalliana - Hedyotis purpurea woodland bluets Helenium amarum* narrow-leaved sneezeweeed Helenium autumnale autumn sneezeweed Helenium flexuosum dark-eyed sneezeweed Helianthus angustifolius narrow-leaved sunflower Helianthus atrorubens sunflower Helianthus decapetalus wide-leaved sunflower Helianthus hirsutus hairy sunflower Helianthus maximiliani sunflower

15 of 35 Helianthus microcephalus small wood sunflower Helianthus occidentalis naked stemmed sunflower Helianthus strumosus rough-leaved sunflower Helianthus tuberosus Jerusalem-artichoke Helianthus x laetiflorus* - Heliopsis helianthoides ox-eye Hemerocallis fulva day-lily Hepatica acutiloba sharp-lobed hepatica Hepatica americana round-lobed hepatica Heterotheca camporum prairie golden aster Heterotheca graminifolia grass-leaved golden aster Heterotheca mariana shaggy golden aster Heuchera americana alumroot Heuchera villosa hairy alumroot Hexalectris spicata crested coralroot Hexastylis arifolia little brown jugs Hibiscus laevis smooth rose-mallow Hibiscus moscheutos swamp rose-mallow Hibiscus trionum flower of an hour Hieracium gronovii hairy hawkweed Hieracium venosum rattlesnake hawkweed Holcus lanatus velvet grass Holosteum umbellatum jagged chickweed Hordeum pusillum little barley Huperzia lucidula shining clubmoss Hybanthus concolor green violet Hydrangea arborescens hydrangea Hydrastis canadensis golden seal Hydrophyllum canadense maple-leaved waterleaf Hydrophyllum macrophyllum hairy waterleaf Hymenocallis occidentalis spider lily Hypericum densiflorum shrubby St.John's-wort Hypericum denticulatum coppery St.John's-wort Hypericum dolabriforme - Hypericum drummondii nits-and-lice Hypericum gentianoides pineweed

16 of 35 Hypericum gymnanthum - Hypericum mutilum dwarf St.John's-wort Hypericum perforatum common St.John's-wort Hypericum prolificum - Hypericum punctatum dotted St.John's-wort Hypericum sphaerocarpum - Hypericum stragalum - Hypoxis hirsuta yellow star grass Ilex ambigua Beadle's holly Ilex opaca American holly Ilex verticillata winterberry Impatiens capensis orange jewelweed Impatiens pallida pale jewelweed Ipomoea coccinea scarlet morning-glory Ipomoea hederacea ivy-leaved morning-glory Ipomoea lacunosa small white morning-glory Ipomoea pandurata wild potato vine Ipomoea purpurea purple morning-glory Iris cristata crested dwarf iris Iris germanica* German iris Iris pseudacorus yellow European iris Iris virginica blue flag Isoetes caroliniana Carolina quillwort Isoetes engelmannii* Engelmann's quillwort Isotria verticillata whorled popgonia Itea virginica sweet-spire Iva annua rough marsh-elder Jeffersonia diphylla twin leaf Juglans cinerea* butternut Juglans nigra black walnut Juncus acuminatus rush Juncus biflorus rush Juncus brachycarpus rush Juncus brachycephalus rush Juncus bufonius* toad-rush Juncus coriaceus rush

17 of 35 Juncus debilis rush Juncus dudleyi rush Juncus effusus soft rush Juncus interior rush Juncus marginatus rush Juncus scirpoides rush Juncus secundus rush Juncus tenuis path rush Juniperus virginiana red cedar Justicia americana water-willow Kalmia latifolia moutain laurel Krigia biflora dwarf dandelion Krigia virginica Virginia dwarf dandelion Kuhnia eupatoriodes false boneset Kummerowia stipulacea Korean bush-clover Kummerowia striata Japanese clover Kyllinga brevifoliodes - Kyllinga pumila - Lactuca canadensis wild lettuce Lactuca floridana woodland blue lettuce Lactuca saligna willow-leaved lettuce Lactuca serriola prickly lettuce Lamium amplexicaule henbit Lamium purpureum purple dead-nettle Lathyrus latifolia everlasting pea Lechea racemulosa pinweed Leersia oryzoides rice cutgrass Leersia virginica Virginia cutgrass Lemna minor duckweed Leonurus cardiaca motherwort Lepidium campestre cow-cress Lepidium virginicum poor man's pepper Lespedeza bicolor shrubby bushclover Lespedeza capitata round-headed bush-clover Lespedeza cuneata cuneate bus-clover Lespedeza hirta hairy bush-clover

18 of 35 Lespedeza intermedia - Lespedeza procumbens low bush-clover Lespedeza repens trailing bush-clover Lespedeza violacea bush-clover Lespedeza virginica slender bush-clover Leucospora multifida - Leucothoe fontanesiana dog-hobble Liatris aspera lacerate blazing star Liatris cylindracea* slender blazing-star Liatris spicata sessile blazing star Liatris squarrosa* plains blazing star Ligusticum canadense lovage Ligustrum sinense privet Ligustrum vulgare* privet Lilium canadense Canada lily Lilium michiganese* Michigan lily Linaria canadensis toadflax Linaria vulgaris butter-and-eggs Lindera benzoin spicebush Lindernia dubia false pimpernell Linum medium common yellow fax Linum striatum ridgestem yellow flax Linum sulcatum grooved yellow flax Linum virginianum Virginia flax Liparis liliifolia lily-leaved twayblade Liparis loeselii fen orchid Liquidambar styraciflua sweetgum Liriodendron tulipifera tulliptree Lithospermum canescens orange puccoon Lobelia cardinalis cardinal flower Lobelia inflata Indian tobacco Lobelia puberula downy lobelia Lobelia siphilitica great lobelia Lobelia spicata lobelia Lolium multiflorum Italian ryegrass Lolium perenne perennial ryegrass

19 of 35 Lonicera japonica Japanese honeysuckle Lonicera maackii - Lotus corniculatus birdfoot trefoil Ludwigia alternifolia alternate-leaved seedbox Ludwigia decurrens decurrent seedbox Ludwigia palustris water-purslane Luzula acuminata wood-rush Luzula bulbosa wood-rush Luzula echinata wood-rush Luzula multiflora wood-rush Lycopodium obscurum treelike clubmoss Lycopus americanus American bugleweed Lycopus rubellus* stalked bugle-weed Lycopus virginicus Virginia water-horehound Lygodium palmatum climbing fern Lyonia ligustrina maleberry Lysimachia ciliata fringed loosestrife Lysimachia lanceolata lance-leaved loosestrife Lysimachia nummularia moneywort Lysimachia quadrifolia smooth loosestrife Lysimachia tonsa Appalachian loosestrife Lythrum alatum winged loosestrife Lythrum salicaria purple loosestrife Maclura pomifera Osage-orange Magnolia acuminata cucumber-tree Magnolia tripetala umbrella magnolia Mahonia bealei Oregon grape Malaxis unifolia adder's mouth Malus pumila* apple Malvastrum hispidum* - Manfreda virginica false aloe Matelea gonocarpa climbing milkweed Mecardonia acuminata - Medeola virginiana Indian cucumber Medicago lupulina black medick Medicago sativa* alfalfa

20 of 35 Melica mutica melica grass Melilotus alba white sweet-clover Melilotus officinalis yellow sweet-clover Menispermum canadense moonseed Mentha spicata spearmint Mentha x piperita peppermint Microstegium vimineum Nepal grass Mimulus alatus winged monkey flower Mimulus ringens monkey flower Mitchella repens partridgeberry Mitella diphylla bishop's cap Mollugo verticillata carpet-weed Monarda didyma bee-balm Monarda fistulosa wild bergamot Monotropa hypopithys pine-sap Monotropa uniflora Indian pipe Morus rubra red mulberry Mosla dianthera - Muhlenbergia frondosa muhly Muhlenbergia schreberi nimblewill Muhlenbergia sylvatica woodland muhly Muhlenbergia tenuiflora muhly Murdannia keisak - Myosotis macrosperma large-seeded forget-me-not Myosotis verna early forget-me-not Myosurus minimus mouse-tail Myriophyllum spicatum European water-milfoil Najas gracillima* slender water-nymph Najas guadalupensis southern water-nymph Narcissus pseudonarcissus* daffodil Nasturtium officinale watercress Nicandra physalodes apple-of-Peru Nyssa sylvatica black gum Obolaria virginica pennywort Oenothera biennis evening primrose Oenothera fruticosa sundrops

21 of 35 Oenothera laciniata cut-leaved primrose Onoclea sensibilis sensitive fern Ophioglossum engelmannii limestone adder's tongue fern Ophioglossum pycnostichium southeastern adder's tongue fern Opuntia humifusa prickly pear cactus Orbexilum onobrychis tall psoralea Orbexilum pedunculatum Sampson's snakeroot Ornithogalum umbellatum star of Bethlehem Orobanche uniflora one-flowered cancer-root Orontium aquaticum golden club Osmorhiza claytonii bland sweet cicely Osmorhiza longistylis long styled sweet cicely Osmunda cinnamomea cinnamon fern Osmunda regalis royal fern Ostrya virginiana hop-hornbeam Oxalis grandis large wood sorrel Oxalis stricta wood sorrel Oxalis violacea wood sorrel Oxydendrum arboreum sourwood Oxypolis rigidior cowbane Pachysandra procumbens Allegheny-spurge Panax quinquefolius ginseng Panicum acuminatum panic grass Panicum acuminatum panic grass Panicum anceps panic grass Panicum angustifolium panic grass Panicum boscii panic grass Panicum capillare panic grass Panicum clandestinium panic grass Panicum commutatum panic grass Panicum depauperatum panic grass Panicum dichotomiflorum panic grass Panicum dichotomum panic grass Panicum flexile panic grass Panicum lanuginosum* panic grass Panicum laxiflorum panic grass

22 of 35 Panicum microcarpon panic grass Panicum ovale panic grass Panicum philadelphicum* panic grass Panicum polyanthes panic grass Panicum rigidulum panic grass Panicum scoparium panic grass Panicum sphaerocarpon panic grass Panicum virgatum panic grass Paronychia fastigiata forked chickweed Parthenium integrifolium wild quinine Parthenocissus quinquefolia Virginia creeper Paspalum boscianum - Paspalum dilatatum - Paspalum laeve - Paspalum pubiflorum - Paspalum setaceum - Paspalum setaceum - Passiflora incarnata purple passion flower Passiflora lutea yellow passion flower Paulownia tomentosa princess-tree Pedicularis canadensis* slender lousewort Pellaea atropurpurea purple-stemmed cliffbrake Pellaea glabella smooth cliffbrake Penstemon canescens hairy beard-tongue Penstemon digitalis large-flowered beard-tongue Penstemon laevigatus smooth beard-tongue Penstemon pallidus eastern white beard-tongue Penthorum sedoides ditch stone-crop Perilla frutescens beefsteak plant Phacelia bipinnatifida purple phacelia Phacelia purshii Pursh's purple phacelia Phalaris arundinacea reed canary grass Phaseolus polystachyus wild bean Philadelphus hirsutus hairy mock-orange Philadelphus inodorus mock-orange Phleum pratense common timothy

23 of 35 Phlox amoena hairy phlox Phlox amplifolia wide-leaved phlox Phlox divaricata forest phlox Phlox glaberrima smooth phlox Phlox maculata meadow phlox Phlox paniculata summer phlox Phlox pilosa* prairie phlox Phlox stolonifera crawling phlox Phoradendron leucarpum mistletoe Phryma leptostachya lopseed Phyla lanceolata fog-fruit Phyllanthus caroliniensis phyllanthus Physalis longifolia downy ground-cherry Physalis pubescens hairy ground-cherry Physalis virginiana Virginia ground-cherry Physostegia virginiana false dragonhead Phytolacca americana pokeweed Pilea pumila clearweed Pinus echinata short-leaf pine Pinus strobus white pine Pinus taeda loblloly pine Pinus virginiana scrub pine Plantago aristata plantain Plantago lanceolata plantain Plantago pusilla small plantain Plantago rugelii plantain Plantago virginica plantain Platanthera clavellata green woodland orchid Platanthera flava northern tubercled orchid Platanthera lacera green-fringed orchid Platanthera peramoena purple-fringeless orchid Platanus occidentalis sycamore Pluchea camphorata camphorweed Poa alsodes - Poa annua annual bluegrass Poa autumnalis autumn bluegrass

24 of 35 Poa compressa bluegrass Poa cuspidata woodland bluegrass Poa pratensis Junegrass Poa sylvestris woodland bluegrass Podophyllum peltatum may-apple Polemonium reptans spreading Jacob's ladder Polygala curtissii Curtiss' milkwort Polygala incarnata pink milkwort Polygala sanguinea blood-milkwort Polygala senega Seneca-snakeroot Polygala verticillata loose milkwort Polygala verticillata whorled milkwort Polygonatum biflorum smooth Solomon's seal Polygonum cespitosum smartweed Polygonum cuspidatum Japanese knotweed Polygonum hydropiper water-pepper Polygonum hydropiperoides water smartweed Polygonum lapathifolium smartweed Polygonum pensylvanicum smartweed Polygonum persicaria smartweed Polygonum punctatum smartweed Polygonum sagittatum teartumb Polygonum scandens climbing buckwheat Polygonum virginianum Virginia knotweed Polymnia canadensis leaf-cup Polymnia uvedalia bear's foot Polypodium polypodioides resurrection fern Polypodium virginianum rock polypody fern Polypremum procumbens - Polystichum acrostichoides Christmas fern Poncircus trifoliata trifoliate orange Populus alba silvery poplar Populus deltoides eastern cottonwood Populus x jackii - Porteranthus trifoliatus Bowman's root Potamogeton crispus pondweed

25 of 35 Potamogeton diversifolius pondweed Potamogeton foliosus pondweed Potamogeton pusillus pondweed Potentilla canadensis dwarf cinquefoil Potentilla norvegica rough cinquefoil Potentilla recta rough-fruited cinquefoil Prenanthes altissima* tall white lettuce Prenanthes serpentaria rattlesnakeroot Prenanthes trifoliolata lion's foot Prunella vulgaris heal-all Prunus americana wild plum Prunus munsoniana Munson plum Prunus serotina black cherry Ptelea trifoliata wafer ash Pteridium aquilinum bracken fern Pueraria lobata kudzu Pycnanthemum incanum hoary mountain-mint Pycnanthemum incanum hoary mountain-mint Pycnanthemum pilosum mountain-mint Pycnanthemum tenuifolium narrow-leaved mountain-mint Pycnanthemum virginianum mountain-mint Pyrrhopappus carolinianus false dandelion Pyrularia pubera buffalo-nut Quercus alba white oak Quercus bicolor swamp white oak Quercus coccinea scarlet oak Quercus falcata southern red oak Quercus marilandica blackjack oak Quercus michauxii swamp chestnut oak Quercus montana chestnut oak Quercus muehlenbergii chinkapin oak Quercus palustris pin oak Quercus rubra northern red oak Quercus shumardii Shumard oak Quercus stellata post oak Quercus velutina black oak

26 of 35 Ranunculus abortivus small-flowered crowfoot Ranunculus acris common buttercup Ranunculus bulbosus bulbous buttercup Ranunculus carolinianus Carolina buttercup Ranunculus fascicularis thick-root buttercup Ranunculus hispidus hispid buttercup Ranunculus parviflorus small-flowered buttercup Ranunculus pusilus - Ranunculus recurvatus hooked buttercup Ranunculus repens creeping buttercup Ranunculus sardos - Ranunculus sceleratus cursed crowfoot Ranunculus septentrionalis* northern swamp buttercup Ratibida pinnata gray coneflower Rhamnus caroliniana Carolina buckthorn Rhexia mariana pale meadow beauty Rhexia virginica meadow beauty Rhododendron maximum rosebay rhododendron Rhododendron minus small-leaved rhododendron Rhododendron periclymenoides pinxter-bush Rhus aromatica fragrant sumac Rhus copallina winged sumac Rhus glabra smooth sumac Rhynchosia tomentosa hairy rhynchosia Rhynchospora capitellata beak-rush Rhynchospora colorata white-top sedge Rhynchospora globularis beak-rush Robinia hispida bristly locust Robinia pseudoacacia black locust Rorippa palustris common yellow-cress Rorippa sessiliflora southern yellow-cress Rosa carolina Carolina rose Rosa multiflora multiflora rose Rosa setigera prairie rose Rotala ramosior toothcup Rubus argutus highbush blackberry

27 of 35 Rubus betulifolius* blackberry Rubus flagellaris northern dewberry Rubus hispidus* bristley dewberry Rubus occidentalis* blackberry Rubus phoenicolasius wineberry Rudbeckia fulgida eastern coneflower Rudbeckia hirta black-eyed susan Rudbeckia laciniata golden glow Rudbeckia triloba three-lobed coneflower Ruellia caroliniensis Carolina ruellia Ruellia purshiana Pursh's wild petunia Ruellia strepens ruellia Rumex acetosella shep sorrel Rumex conglomeratus dock Rumex crispus curled dock Rumex obtusifolius bitter dock Sabatia angularis rose-pink Sagittaria australis Appalachian arrow-head Sagittaria calycina Mississippi arrow-head Sagittaria latifolia broad-leaved arrow-head Salix alba white willow Salix babylonica weeping willow Salix caroliniana Carolinia willow Salix exigua sandbar willow Salix humilis prairie willow Salix nigra black willow Salvia lyrata lyre-leaved mint Salvia urticifolia nettle-leaved sage Sambucus canadensis American elder Samolus parviflorus water-pimpernel Sanguinaria canadensis bloodroot Sanicula canadensis Canada snakeroot Sanicula odorata black snakeroot Sanicula smallii southern snakeroot Saponaria officinalis soapwort Sassafras albidum sassafras

28 of 35 Satureja vulgaris basil Saururus cernuus lizard's tail Saxifraga careyana Carey's saxifrage Schizachyrium scoparium little bluestem Schrankia microphylla sensitive-brier Scirpus americanus threesquare bulrush Scirpus atrovirens black bulrush Scirpus cyperinus wool-grass Scirpus fluviatilis river bulrush Scirpus pendulus bulrush Scirpus polyphyllus many-leaved bulrush Scirpus purshianus bluntscale bulrush Scirpus tabernaemontanii great bulrush Scleria oligantha nut-rush Scleria pauciflora nut-rush Scleria triglomerata nut-rush Scrophularia marilandica figwort Scutellaria australis* - Scutellaria elliptica hairy skullcap Scutellaria incana downy skullcap Scutellaria integrifolia entire-leaved skullcap Scutellaria lateriflora maddog skullcap Scutellaria leonardii skullcap Scutellaria nervosa skullcap Scutellaria parvula* - Scutellaria pseudoserrata skullcap Secale cereale* rye Sedum pulchellum widow's cross Sedum ternatum wild stonecrop Selaginella apoda meadow spikemoss Senecio anonymus yellow ragwort Senecio aureus - Senecio obovatus golden ragwort Senna marilandica wild senna Senna obtusifolia sickle-pod Sericocarpus asteriodes white-topped aster

29 of 35 Sericocarpus linifolius - Setaria faberi foxtail Setaria parviflora foxtail Setaria pumila foxtail Setaria viridis green foxtail Sherardia arvensis field-madder Sibara virginica sibara Sida spinosa prickly mallow Silene antirrhina sleepy catchfly Silene stellata starry campion Silene virginica fire pink Silphium asteriscus rosin-weed Silphium compositum lesser basal-leaved rosin-weed Silphium terebinthinaceum prairie dock Silphium trifoliatum whorled rosin-weed Sisyrinchium albidum blue-eyed grass Sisyrinchium angustifolium blue-eyed grass Sisyrinchium atlanticum blue-eyed grass Sisyrinchium mucronatum blue-eyed grass Smilacina racemosa false Solomon's seal Smilax bona-nox catbrier Smilax ecirrata carrion flower Smilax glauca glaucous catbrier Smilax pulverulenta vining carrion flower Smilax rotundifolia greenbrier Smilax taminoides bristly greenbrier Solanum carolinense horse-nettle Solanum ptycanthum nightshade Solidago arguta - Solidago caesia - Solidago canadensis goldenrod Solidago erecta erect goldenrod Solidago flexicaulis zig-zag goldenrod Solidago gigantea tall goldenrod Solidago nemoralis southern gray goldenrod Solidago odora fragrant goldenrod

30 of 35 Solidago patula rough-leaved goldenrod Solidago ptarmicoides* prairie goldenrod Solidago rigida stiff goldenrod Solidago rugosa wrinkled-leaved goldenrod Solidago speciosa showy goldenrod Solidago sphacelata short pappus goldenrod Solidago ulmifolia elm-leaved goldenrod Sonchus asper prickly sow-thistle Sorghastrum elliottii* - Sorghastrum nutans Indian grass Sorghum bicolor* milo Sorghum halepense Johnson grass Sparganium americanum bur-reed Sphenopholis nitida shining sphenopholis Sphenopholis obtusata blunt sphenopholis Spigelia marilandica Indian pink Spiraea douglasii* spiraea Spiraea tomentosa hardhack Spiranthes cernua nodding lady's tresses Spiranthes lacera slender lady's tresses Spiranthes lucida shining lady's tresses Spiranthes ovalis lesser lady's tresses Spiranthes tuberosa little lady's tresses Spiranthes vernalis early lady's tresses spirodela polyrhiza duckweed spirodela punctata duckweed Sporobolus asper* - Sporobolus clandestinus rough dropseed Sporobolus indicus smutgrass Sporobolus neglectus - Sporobolus ozarkanus - Sporobolus vaginiflorus poverty-grass Stachys tenuifolia hedge-nettle Staphylea trifolia bladdernut Stellaria media common chickweed Stellaria pubera star chickweed

31 of 35 Stenanthium gramineum featherbells Stipa avenacea needlegrass Strophostyles helvula annual woolly bean Strophostyles umbellata wild bean Stylophorum diphyllum celandine-poppy Stylosanthes biflora pencil flower Symphoricarpos orbiculatus coral berry Taenidia integerrima yellow pimpernel Taraxacum officinale common dandelion Taxodium distichum* bald cypress Tephrosia spicata goat's rue Tephrosia virginiana goat's rue Teucrium canadense woodsage Thalictrum dioicum early meadow-rue Thalictrum revolutum skunk meadow-rue Thalictrum thalictroides rue-anemone Thaspium barbinode bearded meadow-parsnip Thaspium trifoliatum smooth meadow-parsnip Thelypteris hexagonoptera broad beech fern Thelypteris noveboracensis New York fern Thelypteris palustris marsh fern Thlaspi perfoliatum thoroughwort penny-cress Thuja occidentalis white cedar Tiarella cordifolia foamflower Tilia americana American basswood Tipularia discolor crane-fly orchid Toxicodendron radicans poison ivy Tradescantia subaspera mountain spiderwort Tragopogon dubius - Trichostema brachiatum false pennyroyal Trichostema dichotomum bluecurls Tridens flavus purple top Trifolium campestre low hop-clover Trifolium hybridum alsike clover Trifolium pratense red clover Trifolium repens white clover

32 of 35 Trillium cuneatum* little sweet trillium Trillium flexipes* bent trillium Trillium luteum yellow trillium Trillium sulcatum trillium Trillium vaseyi Vasey's trillium Triodanis perfoliata Venus' looking-glass Triosteum angustifolium horse-gentian Tripsacum dactyloides gama grass Triticum x aestivum* wheat Tsuga canadensis hemlock Tussilago farfara coltsfoot Typha latifolia wideleaf cattail Ulmus alata winged elm Ulmus americana American elm Ulmus rubra slippery elm Urtica dioica stinging nettle Uvularia grandiflora large-flowered bellwort Uvularia perfoliata perfoliate bellwort Uvularia sessiliflolia wild oats Vaccinium arboreum farkleberry Vaccinium corymbosum* - Vaccinium pallidum pale lowbush blueberry Vaccinium stamineum deerberry Valerianella locusta European corn salad Valerianella radiata corn salad Verbascum blattaria moth mullein Verbascum thapsus mullein Verbena simplex vervain Verbena urticifolia white vervain Verbesina alternifolia wingstem Verbesina occidentalis southern flatseed-sunflower Verbesina virginica frostweed Vernonia gigantea tall ironweed Veronica agrestis field speedwell Veronica anagallis-aquatica water speedwell Veronica arvensis corn speedwell

33 of 35 Veronica hederaefolia ivy-leaved speedwell Veronica officinalis common speedwell Veronica peregrina speedwell Veronica serpyllifolia thyme-leaved speedwell Veronica serpyllifolia* - Veronicastrum virginicum Culver's root Viburnum acerifolium maple-leaved virburnum Viburnum prunifolium smooth blackhaw Viburnum rufidulum rusty blackhaw Viburnum sp.? wild raisin? Vicia angustifolia narrow-leaved vetch Vicia caroliniana pale vetch Vicia villosa hairy vetch Vinca minor periwinkle Viola affinis* - Viola canadensis Canadian violet Viola conspersa dog violet Viola cucullata marsh violet Viola hastata halbert-leaved violet Viola hirsutula southern wood violet Viola palmata wood-violet Viola pubescens* yellow forest violet Viola rafinesquii wild pansy Viola sagittata arrow-leaved violet Viola sororia blue violet Viola striata pale violet Viola triloba three-lobed violet Viola tripartita oval-leaved violet Viola tripartita three-parted violet Vitex agnus-castus* - Vitis aestivalis summer grape Vitis cinerea downy grape Vitis riparia frost-grape Vitis rotundifolia muscadine Vitis vulpina frost-grape Vulpia myuros rat-tail fescue

34 of 35 Vulpia octoflora six-weeks festcue Waldsteinia fragarioides barren strawberry Woffia brasiliensis water-meal Woffia columbiana water-meal Woodsia obtusa blunt-lobed woodsia Woodwardia areolata netted chain fern Xanthium strumarium cocklebur Yucca flaccida yucca Zizia aptera golden alexanders Zizia aurea - * = Taxa that do not meet criteria for inclusion in the ORR flora, but have been included in this list to clarify their status. See the ELIGIBILITY field of the complete database list for information on why these taxa are not included in the ORR flora.

Last Updated on 4/21/2004 Send comments to Pat Parr.

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