VALERIANACEAE Wet Grass Forest Valeriana Dioica

VALERIANACEAE Wet Grass Forest Valeriana dioica - - C wood valerian Valeriana edulis U U - tobacco root VERBENACEAE Verbena bracteata - U - bracted vervain VIOLACEAE Viola adunca U - C early blue violet Viola canadensis U - C Canada violet Viola orbiculata - - U round-leaved violet Viola palustris U - U marsh violet

A Vascular Plant Checklist for Lost Trail National Wildlife Refuge

Peter Lesica

January 2015

The checklist is organized alphabetically by family, genus and RUBIACEAE Wet Grass Forest species. We have not attempted to determine plants to subspecies Galium aparine - U U or varieties. Vascular plant nomenclature follows Lesica, P. cleavers 2012. Manual of Montana Vascular Plants. Botanical Research Galium boreale - C U Institute of Texas Press, Fort Worth, Texas. northern bedstraw Habitat and Abundance Codes Galium trifidum C - - small bedstraw Wetlands (Wet) are supplied with groundwater greater than what Galium triflorum - - C is supplied to upland habitats. These include the peatland fens sweet-scented bedst raw and carrs as well as ponds, marshes and wet meadows. Riparian SALICACEAE habitats such as wet spruce forests and willow thickets are also Populus balsamifera U - - included. black cottonwood Populus tremuloides C - C Grassland (Grass) include foothills prairie as well as shrubby quaking aspen inclusions on rocky outcrops and roadside habitats. Salix bebbiana C - - Bebb willow Forest (Forest) are dominated by Douglas fir, ponderosa pine and Salix boothii C - - lodgepole pine. Rock outcrops and small openings in the forest Booth’s willow are also included. Aspen groves are also included. Salix brachycarpa U U - short-fruit willow Common (C): often observed in the this habitat Salix fragilis* U - - crack willow Uncommon (U): not commonly observed in this habitat Salix geyeriana C - - Geyer willow Not present (-): not observed in this habitat Salix scouleriana U - C Scouler willow SANTALACEAE Comandra umbellata - C - bastard toadflax SAXIFRAGACEAE Heuchera cylindrical - U C round-leaf alumroot

SAXIFRAGACEAE (cont.) Wet Grass Forest A Vascular Plant Checklist for Heuchera parviflora - C - Lost Trail National Wildlife Refuge small-leaved alumroot Lithophragma glabrum U C - Lost Trail National Wildlife Refuge is a large biological reserve smooth prairie star (ca. 8,000 acres) in the Northern Rocky Mountains of northwest Lithophragma parviflorum - C - Montana. Lost Trail NWR is a mosaic of wetlands, foothills small-flowered prairie star grasslands and montane coniferous forest and provides habitat for Micranthes nidifica U U - a large number of native plants. A total of 433 species have peak saxifrage been observed on Lost Trail NWR. Seventy-two of the species Mitella nuda U - U encountered were introduced. Fourteen of these species are naked-stem miterwort considered noxious in Montana: Bromus tectorum, Carduus SCROPHULARIACEAE nutans, Centaurea maculosa, Cirsium arvense, Cynoglossum Verbascum thapsus* - C U officinale, Hieracium aurantiacum, H. caespitosum, Hypericum mullein perforatum, Leucanthemum vulgare, Linaria vulgaris, SELAGINELLACEAE Potamogeton crispus, Potentilla recta, Ranunculus acris, and Selaginella densa - C U Senecio jacobea. dense spikemoss SOLANACEAE Four species that are currently listed as species of concern by the Solanum sarachoides* - U - Montana Natural Heritage Program. Carex amplifolia occurs in hairy nightshade permanently wet soil along Pleasant Valley Creek. Hornungia SPARGANIACEAE procumbens is uncommon on soil hummocks in a saline wetland Sparganium angustifolium C - - on the west end of the refuge. Idahoa scapigera is locally narrow-leaved bur-reed common in vernally moist shallow soil of rock outcrop areas on Sparganium eurycarpum U - - the west end of the refuge. Silene spaldingii is scattered in rough broad-fruited bur-reed fescue grasslands on the north and east sides of the refuge. It is TYPHACEAE also listed as threatened under the Federal Endangered Species Typha latifolia C - - Act. Although not currently listed by the Montana Natural cattail Heritage Program, one other species that is rare in Montana also URTICACEAE occurs on the refuge. Allium geyeri var. geyeri is common in Urtica dioica U - U moist grasslands and meadows. stinging nettle

APIACEAE (cont.) Wet Grass Forest RANUNCULACEAE (cont.) Wet Grass Forest Osmorhiza chilensis - - C Ranunculus testiculatus* - U - sweet cicely hornseed buttercup Sium suave C - - Ranunculus uncinatus - - U water parsnip woodland buttercup Zizia aptera - - U Thalictrum occidentale - - C heart-leaved alexanders western meadowrue ASTERACEAE Thalictrum venulosum U - - Achillea millefolium - C U veiny meadowrue yarrow RHAMNACEAE Agoseris glauca - C - Rhamnus alnifolia U - U pale mountain dandelion alderleaf buckthorn Agoseris heterophylla - R - ROSACEAE annual mountain dandelion Amelanchier alnifolia U U C Antennaria anaphaloides - C - serviceberry tall pussytoes Comarum palustre U - - Antennaria dimorpha - C - marsh cinquefoil low pusstoes Crataegus douglasii C - U Antennaria luzuloides - C - Douglas hawthorn rush pussytoes Dasiphora fruticosa C C U Antennaria microphylla - U - shrubby cinquefoil littleleaf pussytoes Drymocallis arguta - C - Antennaria neglecta - U C tall cinquefoil field pussytoes Drymocallis glandulosa - C U Antennaria parvifolia - U U sticky cinquefoil Nuttall’s pussytoes Fragaria vesca - - U Antennaria racemosa - - C woodland strawberry racemose pussytoes Fragaria virginiana - U C Antennaria rosea - C U Virginia strawberry rosy pussytoes Geum allepicum U - U Antennaria umbrinella - C - yellow avens

ROSACEAE (cont.) Wet Grass Forest ALISMATACEAE Wet Grass Forest Geum macrophyllum C - - Alisma plantago-aquatica U - - largeleaf avens Water plantain Geum rivale U - - AMARANTHACEAE purple avens Amaranthus blitoides - U - Geum triflorum - C - prostrate pigweed prairie smoke Chenopodium album* - U - Potentilla anserina C - - lamb’s quarters silverweed Chenopodium glaucum C - - Potentilla argentea* U U U oakleaf goosefoot silvery cinquefoil Chenopodium leptophyllum - C - Potentilla gracilis C C - slimleaf goosefoot fanleaf cinquefoil Chenopodium rubrum - U U Potentilla norvegica* U - U red goosefoot Norway cinquefoil Monolepis nuttalliana - C - Potentilla recta* - C U poverty weed sulphur cinquefoil Suaeda occidentalis U - - Prunus virginiana C C C slender seablite chokecherry APIACEAE Rosa acicularis - - U Angelica arguta U - U prickly rose angelica Rosa woodsii C C C Heracleum lanatum U - U Wood’s rose cow parsnip Rubus idaeus - - U Lomatium ambiguum - U - red raspberry swale desert parsley Rubus pubescens U - - Lomatium dissectum - U U dwarf red raspberry fern-leaved desert parsley Sanguisorba annua U U - Lomatium macrocarpum - C - prairie burnet large-fruit desert parsley Spiraea betulifolia - - C Lomatium triternatum - C - birch-leaved spiraea nine-leaf lomatium

ASTERACEAE (cont.) Wet Grass Forest POLYPODIACEAE Wet Grass Forest Cirsium arvense* C C U Athyrium filix-femina U - U Canada thistle lady fern Cirsium hookerianum - U - Cystopteris fragilis - C U Hooker’s thistle fragile fern Cirsium scariosum - C - Gymnocarpium dryopteris - - U elk thistle oak fern Cirsium undulatum - C - Woodsia oregana - C U wavy-leaved thistle western cliff fern Cirsium vulgare* - U - PORTULACACEAE bull thistle Claytonia lanceolata - U - Conyza canadensis - U - spring beauty horseweed Claytonia rubra - - U Crepis atribarba - U - redstem spring beauty slender hawks beard Lewisia rediviva - C - Crepis runcinata - C - bitterroot naked-stem hawksbeard Montia dichotoma - - U Erigeron corymbosus - C - dwarf miner’s lettuce long-leaf fleabane Montia linearis C C - Erigeron divergens - C - narrow-leaved miner’s lettuce spreading fleabane Potamogeton crispus* C - - Erigeron filifolius - C - curly pondweed thread-leaf fleabane Potamogeton foliosus U - - Erigeron pumilus - C - leafy pondweed shaggy fleabane Potamogeton natans C - - Erigeron speciosus U C U floating pondweed showy fleabane Potamogeton pusillus C - - Erigeron strigosus - U - slender pondweed daisy fleabane Potamogeton richardsonii U - - Filago arvensis* - U - Richardson’s pondweed fluffweed

PRIMULACEAE Wet Grass Forest ASTERACEAE (cont.) Wet Grass Forest Dodecatheon conjugens U C - Arnica chamissonis U - - desert shooting star leafy arnica Dodecatheon pulchellum C - - Arnica cordifolia - - C dark-throat shooting star heart-leaved arnica RANUNCULACEAE Arnica sororia - C U Actaea rubra - - C twin arnica baneberry Artemisia absinthium* - U - Anemone cylindrical - U - wormwood long-headed anemone Artemisia biennis - U - Anemone multifida - C - biennial wormwood Pacific anemone Artemisia dracunculus - C - Clematis occidentalis - - C wild taragon western virgin’s bower Artemisia frigida - C - Delphinium nuttallianum U C - fringed sagewort Nuttall’s larkspur Artemisia ludoviciana U C - Myosurus apetalus U U - mugwort bristly mousetail Artemisia tripartita - U - Ranunculus acris* U U - three-tip sagebrush tall buttercup Balsamorhiza sagittata - C U Ranunculus aquatilis C - - arrow-leaf basamroot white water crowfoot Bidens cernua U - - Ranunculus cymbalaria U - - nodding beggar’s ticks alkali buttercup Canadanthus modestus U - U Ranunculus glaberrimus U U - great northern aster sagebrush buttercup Carduus nutans* - U - Ranunculus gmelinii C - - musk thistle yellow water crowfoot Centaurea maculosa* U C C Ranunculus macounii U - - spotted maculosa Macoun’s buttercup Chrysothamnus nauseosus - U - Ranunculus sceleratus C - - rubber rabbitbrush celery-leaved buttercup

ASTERACEAE (cont.) Wet Grass Forest POACEAE (cont.) Wet Grass Forest Senecio integerrimus U C - Koeleria macrantha - C - western groundsel junegrass Senecio jacobea* - C C Muhlenbergia richardsonii U U - tansy ragwort mat muhly Senecio pseudaureus C - C Oryzopsis hymenoides - U - streambank butterweed Indian ricegrass Solidago canadensis C C C Phleum pratense* C C - Canada goldenrod timothy Solidago missouriensis - C U Poa annua* - U - Missouri goldenrod annual bluegrass Sonchus arvensis* U U - Poa bulbosa* - U - field sowthistle bulbous bluegrass Symphyotrichum boreale R - - Poa compressa* U C - boreal aster Canada bluegrass Symphyotrichum campestre - C - Poa pratensis* C C U meadow aster Kentucky bluegrass Symphyotrichum ciliatum U - - Poa secunda - C - alkali aster Sandberg bluegrass Symphyotrichum ericoides U C - Puccinellia nuttalliana C - - heath-leaved aster alkaligrass Symphyotrichum leave U C U Spartina gracilis U - - smooth blue aster alkali cordgrass Taraxacum laevigatum* - C U Stipa comata - C - red-seed dandelion needle-and-thread Taraxacum officinale* C U U Stipa nelsonii U C - common dandelion Columbia needlegrass Tragopogon dubius* U C - Stipa richardsonii - C - salsify Richardson’s needlegrass BERBERIDACEAE Ventenata dubia* - U - Berberis repens - - C wiregrass Oregon grape

POACEAE (cont.) Wet Grass Forest ASTERACEAE (cont.) Wet Grass Forest Vulpia octoflora - C - Gaillardia aristata - C - six-weeks fescue blanket flower POLEMONIACEAE Gnaphalium palustre U - - Collomia linearis U C - marsh cudweed narrow-leaved collomia Hieracium albiflorum - - C Linanthus septentrionalis - U U white-flowered hawkweed northern desert-gold Hieracium aurantiacum* - - U Microsteris gracilis - C - orange hawkweed pink twink Hieracium caespitosum* - C - POLYGONACEAE meadow hawkweed Eriogonum flavum - C - Hieracium scoulei - C U yellow wild buckwheat Scouler’s hawkweed Eriogonum heracleoides - C - Leucanthemum vulgare* - - U parsnip-flower buckwheat oxeye daisy Polygonum amphibium C - - Madia exigua - U - water smartweed little tarweed Polygonum aviculare* - U - Madia minima - R - dooryard knotweed small-headed tarweed Polygonum douglasii U C - Matricaria matricarioides - U - Douglas knotweed pineapple weed Polygonum polygaloides U U - Microseris nutans U C - white-margin knotweed nodding microseris Rumex acetosella U U - Pyrocoma carthamoides - C - sheep sorrel large-flower goldenweed Rumex crispus* U - - Senecio canus - C - curly dock wooly groundsel Rumex fueginus U - - Senecio hydrophilloides U U - seaside dock sweet marsh butterweed Senecio indecorus R - R rayless butterweed

BRASSICACEAE (cont.) Wet Grass Forest POACEAE (cont.) Wet Grass Forest Capsella bursa-pastoris* - U - Alopecurus aequalis C - - shepherd’s purse sream foxtail Cardamine pensylvanica C - - Alopecurus arundinacea* C - - Pennsylvania bittercress Garrison creeping foxtail Descurainia incana - C - Apera interrupta* - U - mountain tanseymustard longawn bentgrass Descurainia sophia* U U - Beckmania syzigachne C - - flixweed sloughgrass Draba verna - C - Bromus hordaceus* - U - spring whitlow-wort soft brome Erysimum repandum - U - Bromus inermis* C C U spreading wallflower smooth brome Hornungia procumbens - R - Bromus japonicas* - C - Hutchinsia Japanese brome Idahoa scapigera - U - Bromus tectorum* - C U scalepod cheatgrass Lepidium perfoliatum* U U - Calamagrostis canadensis U - U clasping pepperweed bluejoint reedgrass Lepidium virginicum - C - Calamagrostis purpurascens - U - tall pepperweed purple reedgrass Rorippa curvisiliqua U - - Calamagrostis rubescens - - C western yellowcress pinegrass Rorippa palustris C - - Catabrosa aquatica U - - marsh yellowcress brookgrass Sisymbrium altissimum* - C U Dactylis glomerata* U C C common tumblemustard orchard grass Sisymbrium loeselii* - U - Danthonia californica - U - Loesel tumblemustard California oatgrass Thlaspi arvense* U C U Danthonia intermedia - U U pennycress timber oatgrass

POACEAE (cont.) Wet Grass Forest BETULACEAE Wet Grass Forest Danthonia unispicata - C - Alnus incana C - U onespike oatgrass mountain alder Deschampsia cespitosa C - - BORAGINACEAE tufted hairgrass Cryptantha torreyana - U U Deschampsia danthonioides U - - Torrey’s cat’s-eye annual hairgrass Cynoglossum officinale* U C C Deschampsia elongata - U - hound’s-tongue slender hairgrass Lappula redowskii - C - Distichlis spicata C - - western stickseed saltgrass Lappula squarrosa - U - Elymus cinereus U C - bristly stickseed basin wildrye Lithospermum ruderale - C - Elymus glaucus U - U gromwell blue wildrye Myosotis laxa U - - Festuca campestris - C - small-flowered forget-me-not rough fescue Myosotis micrantha* - C - Festuca idahoensis - C - blue forget-me-not Idaho fescue Plagiobothrys scouleri U - - Festuca rubra* - U - Scouler’s popcorn-flower red fescue BRASSICACEAE Festuca subulata - - U Alyssum alyssoides* - C - bearded fescue pale alyssum Glyceria borealis U - - Alyssum desertorum* - C - northern mannagrass desert alyssum Glyceria grandis U - - Barbarea orthoceras U - - American mannagrass American wintercress Glyceria striata C - - Boechera pendulocarpa - C - fowl mannagrass dropseed rockcress Hordeum jubatum C U - Boechera retrofracta - C - foxtail barley second rockcress

CARYOPHYLLACEAE Wet Grass Forest PINACEAE Wet Grass Forest Silene spaldingii - U - Larix occidentalis - - U Spalding’s catchfly western larch Spergularia rubra* U U - Picea engelmannii C - C red sandspurry Engelmann spruce Stellaria longifolia U U U Pinus contorta - - C long-leaved starwort lodgepole pine Stellaria longipes - C U Pinus monticola - - U long-stalk starwort western white pine Stellaria umbellata U - - Pinus ponderosa - C C umbellate starwort ponderosa pine CERATOPHYLLACEAE Pseudotsuga menziesii U U C Ceratophyllum demersum C - - Douglas fir hornwort PLANTAGINACEAE CORNACEAE Collinsia parviflora - C C Cornus canadensis - - U blue-eyed Mary bunchberry dogwood Linaria vulgaris* - U - Cornus sericea C - U common toadflax red osier dogwood Penstemon albertinus - U U CRASSULACEAE Alberta penstemon Sedum stenopetalum - C U Penstemon confertus - C - narrow-petal stonecrop yellow beardtongue CUPRESSACEAE Penstemon procerus U U - Juniperus communis U - C small-flowered penstemon common juniper Penstemon wilcoxii - U U Juniperus scopulorum - R R Wilcox’s penstemon Rocky Mountain juniper Plantago major* - U - CYPERACEAE common plantain Carex amplifolia U - - Plantago patigonica - C - big-leaf sedge wooly plantain Carex athrostachya U - - Veronica americana C - - slender-beaked sedge American speedwell

PLANTAGINACEAE (cnt.) Wet Grass Forest CALLITRICHACEAE Wet Grass Forest Veronica anagalis-aquatica C - - Callitriche hermaphroditica C - - brook speedwell autumnal water-starwort Veronica arvensis* - C - Callitriche palustris C - - corn speedwell vernal water-starwort Veronica officinalis* - - U CAMPANULACEAE gypsy weed Campanula rotundifolia U C C Veronica peregrina U U U harebell wandering speedwell CAPRIFOLIACEAE Veronica serpyllifolia C - - Linnaea borealis - - C thyme-leaved speedwell twinflower Veronica verna* U U - Symphoricarpos albus C C C spring speedwell common snowberry POACEAE CARYOPHYLLACEAE Agropyron cristatum* - C - Arenaria congesta - C - crested wheatgrass ballhead sandwort Agropyron dasystachyum - C - Arenaria serpyllifolia* U C U thick-spike wheatgrass thyme-leaved sandwort Agropyron intermedium* - U - Cerastium fontanum* U U U intermediate wheatgrass mouse-eared chickweed Agropyron repens* U U - Cerastium nutans U - U quackgrass nodding chickweed Agropyron smithii U U - Dianthus armeria* - C - western wheatgrass Deptford pink Agropyron spicatum - C - Moerhingia lateriflora - U U bluebunch wheatgrass grove sandwort Agropyron trachycaulum U U U Sagina saginoides U - U slender wheatgrass arctic pearlwort Agrostis scabra - U - Silene douglasii - U - tickle grass Douglas’ catchfly Agrostis stolonifera* U U - Silene menziesii - - C redtop Menzies’ catchfly

CYPERACEAE (cont.) Wet Grass Forest LILIACEAE Wet Grass Forest Carex praticola U - U Allium geyeri C - - meadow sedge Geyer’s onion Carex rossii U U C Calochortus apiculatus - - C Ross’ sedge Baker mariposa lily Carex sartwellii U - - Calochortus macrocarpus - U - Sartwell’s sedge large-flowered mariposa lily Carex utriculata C - - Camassia quamash C C - beaked sedge camas Eleocharis acicularis C - - Prosartes trachycarpum - - C least spikerush rough-fruited fairy bells Eleocharis palustris C - - Erythronium grandiflorum - U U common spikerush glacier lily Eleocharis pauciflorus U - - Fritillaria pudica - C - few-flowered spikerush yellow bells Schoenoplectus acutus C - - Smilacina racemosa - - C hardstem bulrush Solomon’s plume Scirpus microcarpus C - - Smilacina stellata - - C small-fruit bulrush starry Solomon’s plume ELAEAGNACEAE Streptopus amplexifolius - - U Elaeagnus commutate U - U twisted stalk wolf willow Zigadenus elegans U - U Shepherdia canadensis U - C showy death camas Canada buffaloberry Zigadenus venenosus - C - EQUISETACEAE meadow death camas Equisetum arvense C - U LYCOPODIACEAE field horsetail Lycopodium annotinum - - U Equisetum laevigatum C - - stiff clubmoss smooth horsetail NYMPHAEACEAE Equisetum sylvaticum U - U Nuphar polysepala U - - woodland horsetail yellow water-lily

ONAGRACEAE Wet Grass Forest CYPERACEAE (cont.) Wet Grass Forest Epilobium brachycarpum - C - Carex aurea U - - panicled willow-herb golden-fruit sedge Epilobium ciliatum U - - Carex bebbii U - - hairy willow-herb Bebb’s sedge Epilobium hornemannii U - - Carex canescens C - - Hornemann’s willow-herb hoary sedge Oenothera villosa - U - Carex capillaris U - U hairy evening primrose hair sedge ORCHIDACEAE Carex concinnoides - - C Calypso bulbosa - - U northwestern sedge fairy slipper Carex deweyana U - U OROBANCHACEAE Dewey’s sedge Castilleja cusickii - U - Carex disperma C - - Cusick’s paintbrush soft-leaved sedge Castilleja hispida - U U Carex douglasii - C - harsh paintbrush Douglas’ sedge Castilleja lutescens - U - Carex eleocharis - U - yellow paintbrush needle-leaf sedge Castilleja miniata - - U Carex filifolia - C - scarlet paintbrush thread-leaf sedge Orobanche uniflora U U - Carex hoodii - U - one-flower broomrape Hood’s sedge Orthocarpus luteus - U - Carex microptera C U U yellow owl’s clover small-wing sedge Orthocarpus tenuifolius - C - Carex pachystachya U U - thin-leaved owl’s clover thick-head sedge Mimulus guttatus U - - Carex petasata - U - yellow monkeyflower Liddon’s sedge Carex praegracilis C - - clustered field sedge

FABACEAE Wet Grass Forest GROSSULARIACEAE Wet Grass Forest Lotus corniculatus* - U - Ribes cereum - C C bird’s-foot treefoil wax currant Lupinus polyphyllus - C - Ribes inerme U - U Wyeth’s lupine white-stem gooseberry Lupinus sericeus - C - Ribes setosum U - U silky lupine bristly gooseberry Medicago lupulina* - U - HALORAGACEAE black medic Myriophyllum sibiricum C - - Melilotus alba* U U - water milfoil white sweetclover Hippuris vulgaris C - - Melilotus officinalis* - C - mare’s tail yellow sweetclover HYDRANGEACEAE Trifolium aureum* - U - Philadelphus lewisii - - U golden clover mock orange Trifolium hybridum* U U U HYDROPHYLLACEAE alsike clover Hesperochiron californicus U U - GENTIANACEAE California hesperochiron Gentiana affinis - R - Phacelia hastata - C - prairie gentian silver-leaf phacelia Gentianella amarella U U U Phacelia linearis - U - northern gentian annual phacelia Halenia deflexa U - R HYPERICACEAE spurred gentian Hypericum perforatum* - C C GERANIACEAE St. John’swort Erodium cicutarium* - U - IRIDACEAE crane’s bill Sisyrinchium idahoense - C - Geranium viscosissimum - C - Idaho blue-eyed grass sticky geranium JUNCACEAE Juncus alpinoarticulatus C - - northern rush

JUNCACEAE (cont.) Wet Grass Forest ERICACEAE Wet Grass Forest Juncus balticus C U - Arctostaphylos uva-ursi - - C Baltic rush kinikinick Juncus effusus U - - Chimaphila umbellata - - C soft rush prince’s pine Juncus ensifolius C - - Moneses uniflora - - R iris-like rush one-flower wintergreen Juncus interior U U U Orthilia secunda - - U inland rush side-flowered wintergreen Juncus nodosus C - - Pterospora andromeda - - U knot rush pinedrops Luzula campestris - - C Pyrola asarifolia U - U field woodrush pink wintergreen JUNCAGINACEAE Pyrola clorantha - - U Triglochin maritima C - - green-flowered wintergreen common arrow-grass Vaccinium caespitosum C - C LAMIACEAE dwarf huckleberry Mentha arvensis C - - EUPHORBIACEAE field mint Euphorbia glyptosperma - U - Prunella vulgaris U - U corrugate-seed spurge self-heal FABACEAE LEMNACEAE Astragalus agrestis U C - Lemna minor C - - meadow milkvetch common duckweed Astragalus americanus R R - Lemna trisulca C - - American milkvetch star duckweed Astragalus canadensis U U U Spirodella polyrhiza C - - Canada milkvetch duck meal Hedysarum sulphurescens - U U LENTIBULARIACEAE yellow sweetvetch Utricularia vulgaris C - - Lathyrus ochroleucus U - U common bladderwort cream-flowered peavine