Michigan's Special Plants

This list presents the Endangered (E), Threatened (T), and Probably Extirpated (X) plant species of Michigan, which are protected under the Endangered Species Act of the State of Michigan (Part 365 of PA 451, 1994 Michigan Natural Resources and Environmental Protection Act). The current list became effective on April 9, 2009, after extensive review by technical advisors to the Michigan Department of Natural Resources and the citizenry of the state.

Also included in this list are plant species of Special Concern. While not afforded legal protection under the Act, many of these species are of concern because of declining or relict populations in the state. Should these species continue to decline, they would be recommended for Threatened or Endangered status. Protection of Special Concern species now, before they reach dangerously low population levels, would prevent the need to list them in the future by maintaining adequate numbers of self-sustaining populations within Michigan. Some other potentially rare species are listed as of Special Concern pending more precise information on their status in the state; when such information becomes available, they could be moved to threatened or endangered status or deleted from the list.

This list was produced by the Endangered Species Program of the Michigan Department of Natural Resources and the Michigan Natural Features Inventory. English names in common usage or from published sources have been incorporated, when possible, to promote public understanding of and participation in the Endangered Species Program. To comment on the list or request additional copies, or for information on the Endangered Species Program, contact the Endangered Species Coordinator, Wildlife Division, Michigan Department of Natural Resources, P.O. Box 30028, Lansing, MI 48909 (517-284-9453). To report occurrences of these species, please contact us at mnfi@msu.edu.

The special plants list is also available as a PDF document.

Code Definitions
Scientific NameCommon NameFamilyUS StatusState StatusGlobal RankState RankMore Information
Adlumia fungosaClimbing fumitoryFumariaceaeSCG4S3
Agalinis gattingeriGattinger's gerardiaScrophulariaceaeEG4S1
Agalinis skinnerianaSkinner's gerardiaScrophulariaceaeEG3G4S1
Agoseris glaucaPrairie or pale agoserisAsteraceaeTG5S2
Agrimonia rostellataBeaked agrimonyRosaceaeTG5S2
Agropyron spicatum
(Elytrigia spicata )
Bluebunch wheatgrassPoaceaeXG5SX
Allium schoenoprasum
(Allium schoenoprasum var. sibiricum)
ChivesLiliaceaeTG5S2
Amerorchis rotundifolia
(Orchis rotundifolia)
Small round-leaved orchisOrchidaceaeEG5S1
Amorpha canescensLeadplantFabaceaeSCG5S3
Androsace occidentalisRock-jasminePrimulaceaeEG5SH
Angelica venenosaHairy angelicaApiaceaeSCG5S3
Antennaria parvifoliaPussy-toesAsteraceaeSCG5S1
Antennaria roseaRosy pussytoesAsteraceaeEG5SX
Arabis missouriensis var. deamii
(Boechera missouriensis)
Missouri rock-cressBrassicaceaeSCG5?QT3?QS2
Arabis perstellata
(Boechera dentata)
Rock cressBrassicaceaeTG5S1
Aristida dichotomaThree-awned grassPoaceaeXG5SX
Aristida longespicaThree-awned grassPoaceaeTG5S2
Aristida tuberculosaBeach three-awned grassPoaceaeEG5S1
Aristolochia serpentariaVirginia snakerootAristolochiaceaeTG4S2
Armoracia lacustris
(Armoracia aquatica)
Lake cressBrassicaceaeTG4?S2
Arnica cordifolia
(Arnica whitneyi)
Heart-leaved arnicaAsteraceaeEG5S1
Arnica lonchophyllaLongleaf arnicaAsteraceaeEG4S1
Artemisia ludovicianaWestern mugwortAsteraceaeTG5S1
Asclepias hirtellaTall green milkweedAsclepiadaceaeTG5S2
Asclepias ovalifoliaDwarf milkweedAsclepiadaceaeEG5?S1
Asclepias purpurascensPurple milkweedAsclepiadaceaeTG5?S2
Asclepias sullivantiiSullivant's milkweedAsclepiadaceaeTG5S2
Asplenium rhizophyllum
(Camptosorus rhizophyllus)
Walking fernAspleniaceaeTG5S2S3
Asplenium ruta-murariaWall-rueAspleniaceaeEG5S1
Asplenium scolopendrium var. americanum
(Phyllitis scolopendrium var. americana)
Hart's-tongue fernAspleniaceaeLTEG4T3S1
Asplenium trichomanes-ramosum
(Asplenium viride)
Green spleenwortAspleniaceaeSCG4S3
Aster drummondii
(Symphyotrichum drummondii)
Drummond's asterAsteraceaeTG5S2
Aster furcatus
(Eurybia furcata)
Forked asterAsteraceaeTG3S1
Aster modestus
(Canadanthus modestus)
Great northern asterAsteraceaeTG5S1
Aster praealtus
(Symphyotrichum praealtum)
Willow asterAsteraceaeSCG5S3
Aster sericeus
(Symphyotrichum sericeum)
Western silvery asterAsteraceaeTG5S2
Astragalus canadensisCanadian milk vetchFabaceaeTG5S1S2
Astragalus neglectusCooper's milk vetchFabaceaeSCG4S3
Baptisia lactea
(Baptisia leucantha)
White or prairie false indigoFabaceaeSCG4QS3
Baptisia leucophaeaCream wild indigoFabaceaeEG4G5T4T5S1
Bartonia paniculataPanicled screwstemGentianaceaeTG5S2
Beckmannia syzigachneSlough grassPoaceaeTG5S2
Berula erecta
(Berula pusilla)
Cut-leaved water parsnipApiaceaeTG4G5S2
Besseya bulliiKitten-tailsScrophulariaceaeEG3S1
Betula murrayanaMurray birchBetulaceaeSCG1QS1
Betula populifoliaGray birchBetulaceaeSCG5S3
Botrychium acuminatumMoonwortOphioglossaceaeEG1S1
Botrychium campestrePrairie Moonwort or DunewortOphioglossaceaeTG3G4S2
Botrychium hesperiumWestern moonwortOphioglossaceaeTG4S2
Botrychium mormoGoblin moonwortOphioglossaceaeTG3S2
Botrychium pallidumpale moonwortOphioglossaceaeSCG3S3
Botrychium spathulatumSpatulate moonwortOphioglossaceaeTG3S2
Bouteloua curtipendulaSide-oats grama grassPoaceaeEG5S1
Braya humilisLow northern rock cressBrassicaceaeTG5S1
Bromus nottowayanusSatin bromePoaceaeSCG3G5S3
Bromus pumpellianusPumpelly's bromegrassPoaceaeTG5T4S2
Buchnera americanaBlueheartsScrophulariaceaeXG5?SX
Cacalia plantaginea
(Arnoglossum plantagineum)
Prairie indian-plantainAsteraceaeSCG4G5S3
Calamagrostis lacustrisNorthern reedgrassPoaceaeTG3QS1
Calamagrostis strictaNarrow-leaved reedgrassPoaceaeTG5S1
Callitriche hermaphroditicaAutumnal water-starwortCallitrichaceaeSCG5S2
Callitriche heterophyllaLarge water starwortCallitrichaceaeTG5S1
Caltha natansFloating marsh marigoldRanunculaceaeTG5SNR
Calypso bulbosaCalypso or fairy-slipperOrchidaceaeTG5S2
Camassia scilloidesWild hyacinthLiliaceaeTG4G5S2
Carex albolutescensSedgeCyperaceaeTG5S2
Carex assiniboinensisAssiniboia sedgeCyperaceaeTG4G5S2
Carex atratiformisSedgeCyperaceaeTG5S2
Carex conjunctaSedgeCyperaceaeTG4G5S1
Carex crus-corviRaven's-foot sedgeCyperaceaeEG5S1
Carex davisiiDavis's sedgeCyperaceaeSCG4S3
Carex decompositaLog sedgeCyperaceaeXG3SX
Carex festucaceaFescue sedgeCyperaceaeSCG5S1
Carex gravidaSedgeCyperaceaeXG5SX
Carex haydeniiHayden's sedgeCyperaceaeXG5SX
Carex heleonastesHudson Bay sedgeCyperaceaeEG4S1
Carex inops ssp. heliophilaSun sedgeCyperaceaeSCG5T5S3
Carex lupuliformisFalse hop sedgeCyperaceaeTG4S2
Carex mediaSedgeCyperaceaeTG5T5?S2S3
Carex nigraBlack sedgeCyperaceaeEG5S1
Carex novae-angliaeNew England sedgeCyperaceaeTG5S1
Carex oligocarpaEastern few-fruited sedgeCyperaceaeTG4S2
Carex platyphyllaBroad-leaved sedgeCyperaceaeEG5S1
Carex richardsoniiRichardson's sedgeCyperaceaeSCG4S3S4
Carex rossiiRoss's sedgeCyperaceaeTG5S2
Carex scirpoideaBulrush sedgeCyperaceaeTG5S2
Carex seorsaSedgeCyperaceaeTG4S2
Carex squarrosaSedgeCyperaceaeSCG4G5S1
Carex stramineaStraw sedgeCyperaceaeEG5SH
Carex tinctaSedgeCyperaceaeTG4G5S1
Carex trichocarpaHairy-fruited sedgeCyperaceaeSCG4S2
Carex typhinaCattail sedgeCyperaceaeTG5S1
Carex wiegandiiWiegand's sedgeCyperaceaeSCG4S3
Castanea dentataAmerican chestnutFagaceaeEG4S1S2
Castilleja septentrionalisPale Indian paintbrushScrophulariaceaeTG5S2S3
Ceanothus sanguineusWild lilacRhamnaceaeTG4G5S2
Celtis tenuifoliaDwarf hackberryUlmaceaeSCG5S3
Cerastium brachypodumShortstalk chickweedCaryophyllaceaeTG5S2
Cerastium velutinumField ChickweedCaryophyllaceaeXG5T4?SX
Chamaerhodos nuttallii var. keweenawensis
(Chamaerhodos erecta)
Rock-roseRosaceaeEG5T1QS1
Chasmanthium latifolium
(Uniola latifolia)
Wild oatsPoaceaeEG5S1
Chelone obliquaPurple turtleheadScrophulariaceaeEG4S1
Cirsium hillii
(Cirsium pumilum var. hillii)
Hill's thistleAsteraceaeSCG3S3
Cirsium pitcheriPitcher's thistleAsteraceaeLTTG3S3
Clematis occidentalisPurple clematisRanunculaceaeSCG5S3
Collinsia parvifloraSmall blue-eyed MaryScrophulariaceaeTG5S2
Commelina erectaSlender dayflowerCommelinaceaeXG5SX
Coreopsis palmataPrairie coreopsisAsteraceaeTG5S2
Corydalis flavulaYellow fumewortFumariaceaeTG5S2
Crataegus douglasiiDouglas's hawthornRosaceaeSCG5S3S4
Cryptogramma acrostichoidesAmerican rock-brakePteridaceaeTG5S2
Cuscuta campestrisField dodderCuscutaceaeSCG5SH
Cuscuta glomerataRope dodderCuscutaceaeSCG5SH
Cuscuta indecoraDodderCuscutaceaeSCG5SH
Cuscuta pentagonaDodderCuscutaceaeSCG4G5SH
Cuscuta polygonorumKnotweed dodderCuscutaceaeSCG5S2
Cyperus acuminatusCyperus, Nut grassCyperaceaeXG5SX
Cypripedium arietinumRam's head lady's-slipperOrchidaceaeSCG3S3
Cypripedium candidumWhite lady slipperOrchidaceaeTG4S2
Cystopteris laurentianaLaurentian fragile fernDryopteridaceaeSCG3S1S2
Cystopteris tennesseensisTennissee bladder fernDryopteridaceaeTG5S2
Dalea purpurea
(Petalostemum purpureum)
Purple prairie cloverFabaceaeXG5SX
Dalibarda repensFalse violetRosaceaeTG5S1S2
Danthonia intermediaWild oat grassPoaceaeSCG5S1S2
Dasistoma macrophylla
(Seymeria macrophylla)
Mullein-foxgloveScrophulariaceaeEG4S1
Dennstaedtia punctilobulaHay-scented fernDennstaedtiaceaeTG5S1
Dentaria maxima
(Cardamine maxima)
Large toothwortBrassicaceaeTG5S1S2
Diarrhena obovata
(Diarrhena americana)
Beak grassPoaceaeTG4G5S2
Dichanthelium leibergii
(Panicum leibergii)
Leiberg's panic grassPoaceaeTG5S2
Dichanthelium microcarpon
(Panicum microcarpon)
Small-fruited panic-grassPoaceaeSCGNRS2
Dichanthelium polyanthes
(Panicum polyanthes)
Round-seed panic-grassPoaceaeEGNRS1
Digitaria filiformisSlender finger grassPoaceaeXG5SX
Diphasiastrum alpinum
(Lycopodium alpinum)
Alpine clubmossLycopodiaceaeXG5SX
Dodecatheon meadiaShooting starPrimulaceaeEG5S1
Draba arabisansRock whitlow grassBrassicaceaeSCG4S3
Draba canaAshy whitlow grassBrassicaceaeTG5S1
Draba glabellaSmooth whitlow grassBrassicaceaeEG4G5S1
Draba incanaTwisted whitlow grassBrassicaceaeTG5S1
Draba reptansCreeping whitlow grassBrassicaceaeTG5S1
Drosera anglica
(Drosera Xanglica)
English sundewDroseraceaeSCG5S3
Dryopteris celsaSmall log fernDryopteridaceaeTG4S2
Dryopteris filix-masMale fernDryopteridaceaeSCG5S3
Dryopteris fragransFragrant cliff woodfernDryopteridaceaeSCG5S3
Echinacea purpureaPurple coneflowerAsteraceaeXG4SX
Echinodorus tenellus
(Echinodorus parvulus)
Dwarf burheadAlismataceaeEG5?S1
Eleocharis atropurpureaPurple spike rushCyperaceaeEG4G5S1
Eleocharis compressaFlattened spike rushCyperaceaeTG4S2
Eleocharis engelmanniiEngelmann's spike rushCyperaceaeSCG4G5QS2S3
Eleocharis equisetoidesHorsetail spike rushCyperaceaeSCG4S3
Eleocharis geniculataSpike-rushCyperaceaeXG5SX
Eleocharis melanocarpaBlack-fruited spike-rushCyperaceaeSCG4S3
Eleocharis microcarpaSmall-fruited spike-rushCyperaceaeEG5S1
Eleocharis nitidaSlender spike rushCyperaceaeEG4S1
Eleocharis parvulaDwarf spike-rushCyperaceaeEG5S1
Eleocharis radicansSpike rushCyperaceaeXG5SX
Eleocharis tricostataThree-ribbed spike rushCyperaceaeTG4S2
Elymus glaucusBlue wild-ryePoaceaeSCG5S3
Empetrum nigrumBlack crowberryEmpetraceaeTG5S2
Equisetum telmateiaGiant horsetailEquisetaceaeXG5SX
Eragrostis capillarisLove grassPoaceaeSCG5SH
Eragrostis pilosaSmall love grassPoaceaeSCG4SH
Erigeron acrisFleabaneAsteraceaeTG5S1S2
Erigeron hyssopifoliusHyssop-leaved fleabaneAsteraceaeTG5S1
Eryngium yuccifoliumRattlesnake-master or button snakerootApiaceaeTG5S2
Euonymus atropurpureaWahooCelastraceaeSCG5S3
Eupatorium fistulosum
(Eutrochium fistulosum)
Hollow-stemmed Joe-pye weedAsteraceaeTG5?S1
Eupatorium sessilifoliumUpland bonesetAsteraceaeTG5S1
Euphorbia commutataTinted spurgeEuphorbiaceaeTG5S1
Euphrasia hudsonianaEyebrightScrophulariaceaeTG5?S1
Euphrasia nemorosa
(Euphrasia arctica)
EyebrightScrophulariaceaeTG5S1
Festuca scabrella
(Festuca altaica var. scabrella)
Rough fescuePoaceaeTG5S2S3
Filipendula rubraQueen-of-the-prairieRosaceaeTG4G5S2
Fimbristylis puberulaChestnut sedgeCyperaceaeXG5SX
Fraxinus profunda
(Fraxinus tomentosa)
Pumpkin ashOleaceaeTG4S2
Fuirena pumilaUmbrella-grassCyperaceaeTG4S2
Galearis spectabilis
(Orchis spectabilis)
Showy orchisOrchidaceaeTG5S2
Galium kamtschaticumBedstrawRubiaceaeEG5S1
Gentiana flavida
(Gentiana alba)
White gentianGentianaceaeEG4S1
Gentiana linearisNarrow-leaved gentianGentianaceaeTG4G5S2
Gentiana puberulenta
(Gentiana puberula)
Downy gentianGentianaceaeEG4G5S1
Gentiana saponariaSoapwort gentianGentianaceaeXG5SX
Gentianella quinquefoliaStiff gentianGentianaceaeTG5S2
Geum triflorumPrairie smokeRosaceaeTG5S2S3
Geum virginianumPale avensRosaceaeSCG5S1S2
Gillenia trifoliata
(Porteranthus trifoliatus)
Bowman's rootRosaceaeEG4G5S1
Glyceria acutifloraManna grassPoaceaeXG5SX
Glyceria melicariaSlender manna grassPoaceaeTG5S1
Gnaphalium sylvaticum
(Omalotheca sylvatica)
Woodland everlastingAsteraceaeTG4S1
Gratiola aurea
(Gratiola lutea)
Hedge-hyssopScrophulariaceaeTG5S1S2
Gratiola virginianaAnnual hedge hyssopScrophulariaceaeTG5S1
Gymnocarpium jessoenseNorthern oak fernDryopteridaceaeEG5S1
Gymnocarpium robertianumLimestone oak fernDryopteridaceaeTG5S2
Hedyotis nigricans
(Stenaria nigricans)
HedyotisRubiaceaeXG5SX
Hedysarum alpinumAlpine sainfoinFabaceaeEG5S1
Helianthus hirsutusWhiskered sunflowerAsteraceaeSCG5S3
Helianthus microcephalusSmall wood sunflowerAsteraceaeXG5SX
Helianthus mollisDowny sunflowerAsteraceaeTG4G5S2
Hemicarpha micrantha
(Lipocarpha micrantha)
Dwarf-bulrushCyperaceaeSCG5S3
Hibiscus laevis
(Hibiscus militaris)
Smooth rose-mallowMalvaceaeXG5SX
Hieracium paniculatumPanicled hawkweedAsteraceaeTG5S2
Houstonia caeruleaAzure bluetRubiaceaeXG5SX
Huperzia appalachianaMountain fir-mossLycopodiaceaeSCG4G5S2
Huperzia selago
(Lycopodium selago)
Fir clubmossLycopodiaceaeSCG5S3
Hybanthus concolorGreen violetViolaceaeSCG5S3
Hydrastis canadensisGoldensealRanunculaceaeTG4S2
Hymenoxys herbacea
(Tetraneuris herbacea)
Lakeside daisyAsteraceaeLTEG3S1
Hypericum adpressumCreeping St. John's-wortClusiaceaeTG3S1
Hypericum gentianoidesGentian-leaved St. John's-wortClusiaceaeSCG5S3
Hypericum sphaerocarpumRound-fruited St. John's-wortClusiaceaeEG5S1
Ipomoea pandurataWild potato vine or man-of-the-earthConvolvulaceaeTG5S2
Iris lacustrisDwarf lake irisIridaceaeLTTG3S3
Isoetes engelmanniiEngelmann's quilwortIsoetaceaeEG4S1
Isotria medeoloidesSmaller whorled pogoniaOrchidaceaeLTXG2SX
Isotria verticillataWhorled pogoniaOrchidaceaeTG5S2
Jeffersonia diphyllaTwinleafBerberidaceaeSCG5S3
Juncus brachycarpusShort-fruited rushJuncaceaeTG4G5S1S2
Juncus militarisBayonet rushJuncaceaeTG4S1
Juncus scirpoidesScirpus-like rushJuncaceaeTG5S2
Juncus stygiusMoor rushJuncaceaeTG5S1S2
Juncus vaseyiVasey's rushJuncaceaeTG5?S1S2
Justicia americanaWater willowAcanthaceaeTG5S2
Kuhnia eupatorioides
(Brickellia eupatorioides)
False bonesetAsteraceaeSCG5S2
Lactuca floridanaWoodland lettuceAsteraceaeTG5S2
Lactuca pulchella
(Mulgedium pulchellum)
Blue lettuceAsteraceaeXG5T5SX
Lechea minorLeast pinweedCistaceaeXG5SX
Lechea pulchella
(Lechea leggettii)
Leggett's pinweedCistaceaeTG5S1S2
Lechea strictaErect pinweedCistaceaeSCG4?S1
Lemna valdivianaPale duckweedLemnaceaeXG5SX
Lespedeza procumbensTrailing bush cloverFabaceaeXG5SX
Leucospora multifida
(Conobea multifida)
ConobeaScrophulariaceaeSCG5SNR
Leymus mollis
(Elymus mollis)
American dune wild-ryePoaceaeSCG5S3
Liatris punctataDotted blazing starAsteraceaeXG5SX
Liatris squarrosaPlains blazing starAsteraceaeXG5SX
Linum sulcatumFurrowed flaxLinaceaeSCG5S2S3
Linum virginianumVirginia flaxLinaceaeTG4G5S2
Liparis liliifoliaPurple twaybladeOrchidaceaeSCG5S3
Listera auriculataAuricled twaybladeOrchidaceaeSCG3G4S2S3
Lithospermum incisumNarrow-leaved puccoonBoraginaceaeXG5SX
Lithospermum latifoliumBroad-leaved puccoonBoraginaceaeSCG4S2
Littorella uniflora
(Littorella uniflora var. americana)
American shore-grassPlantaginaceaeSCG5S2S3
Lonicera involucrataBlack twinberryCaprifoliaceaeTG4G5T4T5S2
Ludwigia sphaerocarpaGlobe-fruited seedboxOnagraceaeTG5S1
Luzula parvifloraSmall-flowered wood rushJuncaceaeTG5S1
Lycopodiella margueritae
(Lycopodiella appressa)
Northern prostrate clubmossLycopodiaceaeTG2S2
Lycopodiella subappressa
(Lycopodiella appressa)
Northern appressed clubmossLycopodiaceaeSCG2S2
Lycopus virginicusVirginia water-horehoundLamiaceaeTG5S2
Lygodium palmatumClimbing fernSchizaeaceaeEG4S1
Lysimachia hybridaSwamp candlesPrimulaceaeXG5SX
Mertensia virginicaVirginia bluebellsBoraginaceaeEG5S1S2
Mikania scandensMikaniaAsteraceaeTG5S1
Mimulus alatusWinged monkey flowerScrophulariaceaeXG5SX
Mimulus guttatusWestern monkey flowerScrophulariaceaeSCG5S1
Mimulus michiganensis
(Mimulus glabratus var. michiganensis)
Michigan monkey flowerScrophulariaceaeLEEG5T1S1
Moehringia macrophylla
(Arenaria macrophylla)
Big-leaf sandwortCaryophyllaceaeTG4S1
Morus rubraRed mulberryMoraceaeTG5S2
Muhlenbergia cuspidataPlains muhlyPoaceaeXG4SX
Muhlenbergia richardsonisMat muhlyPoaceaeTG5S2
Myrica pensylvanicaNorthern bayberryMyricaceaeTG5S2
Myriophyllum alterniflorumAlternate-leaved water-milfoilHaloragaceaeSCG5S2S3
Myriophyllum farwelliiFarwell's water milfoilHaloragaceaeTG5S2
Nelumbo lutea
(Nelumbo pentapetala)
American lotusNelumbonaceaeTG4S2
Nuphar pumila
(Nuphar microphylla)
Small yellow pond lilyNymphaeaceaeEG5T4T5S1S2
Nymphaea leibergii
(Nymphaea tetragona)
Pygmy water lilyNymphaeaceaeEG5S1
Onosmodium molleMarbleweedBoraginaceaeXG4G5SX
Ophioglossum vulgatum
(Ophioglossum pycnostichum)
Southeastern adder's-tongueOphioglossaceaeEG5S1
Oplopanax horridusDevil's clubAraliaceaeTG4S2
Opuntia fragilisFragile prickly pearCactaceaeEG4G5S1
Orobanche fasciculataBroomrapeOrobanchaceaeTG4S2
Oryzopsis canadensis
(Piptatherum canadense)
Canada rice grassPoaceaeTG5S2
Osmorhiza depauperata
(Osmorhiza obtusa)
Sweet CicelyApiaceaeTG5S2
Oxalis violaceaViolet wood sorrelOxalidaceaeXG5SX
Panax quinquefoliusGinsengAraliaceaeTG3G4S2S3
Panicum longifolium
(Panicum rigidulum var. pubescens)
Panic grassPoaceaeTG4S2
Panicum philadelphicumPhiladelphia panic-grassPoaceaeTGNRS2
Panicum verrucosumWarty panic grassPoaceaeTG4S1
Parnassia palustrisMarsh grass-of-parnassusSaxifragaceaeTG5S2
Paronychia fastigiataLow-forked chickweedCaryophyllaceaeXG5SX
Pellaea atropurpureaPurple cliff brakePteridaceaeTG5S2
Penstemon calycosusBeard tongueScrophulariaceaeTG5S2
Penstemon gracilisSlender beard tongueScrophulariaceaeEG5S1
Penstemon pallidusPale beard tongueScrophulariaceaeSCG5S3
Petasites sagittatus
(Petasites frigidus var. sagittatus)
Sweet coltsfootAsteraceaeTG5S1S2
Phacelia frankliniiFranklin's phaceliaHydrophyllaceaeTG5S1
Phaseolus polystachiosWild beanFabaceaeXG5SX
Phleum alpinumMountain timothyPoaceaeXG5SX
Phlox bifidaCleft phloxPolemoniaceaeXG5?SX
Phlox maculataWild sweet WilliamPolemoniaceaeTG5S1
Phlox ovata
(Phlox latifolia)
Wideflower phloxPolemoniaceaeEG4S1
Pinguicula vulgarisButterwortLentibulariaceaeSCG5S3
Piperia unalascensis
(Habenaria unalascensis)
Alaska orchidOrchidaceaeSCG5S2S3
Plantago cordataHeart-leaved plantainPlantaginaceaeEG4S1
Platanthera ciliaris
(Habenaria ciliaris)
Orange- or yellow-fringed orchidOrchidaceaeEG5S1S2
Platanthera leucophaea
(Habenaria leucophaea)
Prairie white-fringed orchidOrchidaceaeLTEG3S1
Poa alpinaAlpine bluegrassPoaceaeTG5S1S2
Poa canbyi
(Poa secunda)
Canbyi's bluegrassPoaceaeEG4G5S1
Poa paludigenaBog bluegrassPoaceaeTG3S2
Polemonium reptansJacob's ladderPolemoniaceaeTG5S2
Polygala cruciataCross-leaved milkwortPolygalaceaeSCG5S3
Polygala incarnataPink milkwortPolygalaceaeXG5SX
Polygonum careyi
(Persicaria careyi)
Carey's smartweedPolygonaceaeTG4S1S2
Polygonum viviparum
(Bistorta vivipara)
Alpine bistortPolygonaceaeTG5S1S2
Polymnia uvedalia
(Smallanthus uvedalia)
Yellow-flowered leafcupAsteraceaeTG4G5S1
Polytaenia nuttalliiPrairie parsleyApiaceaeXG5SX
Populus heterophyllaSwamp or Black cottonwoodSalicaceaeEG5S1
Potamogeton bicupulatus
(Potamogeton capillaceus)
Waterthread pondweedPotamogetonaceaeTG4S2
Potamogeton confervoidesAlga pondweedPotamogetonaceaeSCG4S3
Potamogeton hilliiHill's pondweedPotamogetonaceaeTG3S2
Potamogeton pulcherSpotted pondweedPotamogetonaceaeEG5S1
Potamogeton vaseyiVasey's pondweedPotamogetonaceaeTG4SH
Potentilla paradoxaSand cinquefoilRosaceaeTG5SU
Potentilla pensylvanicaPrairie cinquefoilRosaceaeTG5S1
Prenanthes crepidineaNodding rattlesnake-rootAsteraceaeTG4SNR
Prosartes hookeri
(Disporum hookeri)
Fairy bellsLiliaceaeEG5S2
Prosartes maculata
(Disporum maculatum)
Nodding mandarinLiliaceaeXG3G4SX
Prosartes trachycarpa
(Disporum trachycarpum)
Northern fairy bellsLiliaceaeTG5S1
Proserpinaca pectinataMermaid-weedHaloragaceaeEG5S1
Prunus alleghaniensis var. davisiiAlleghany or Sloe plumRosaceaeSCG4T3QS3
Pterospora andromedeaPine-dropsMonotropaceaeTG5S2
Pycnanthemum muticumMountain mintLamiaceaeTG5S1
Pycnanthemum pilosumHairy mountain mintLamiaceaeTG5T5S2
Pycnanthemum verticillatumWhorled mountain mintLamiaceaeSCG5S2
Quercus shumardiiShumard's oakFagaceaeSCG5S2
Ranunculus ambigensSpearwortRanunculaceaeTG4SH
Ranunculus cymbalariaSeaside crowfootRanunculaceaeTG5S1
Ranunculus lapponicusLapland buttercupRanunculaceaeTG5S1S2
Ranunculus macouniiMacoun's buttercupRanunculaceaeTG5S1
Ranunculus rhomboideusPrairie buttercupRanunculaceaeTG5S2
Rhexia mariana
(Rhexia mariana var. mariana)
Maryland meadow beautyMelastomataceaeTG5T5S1S2
Rhexia virginicaMeadow beautyMelastomataceaeSCG5S3
Rhynchospora macrostachyaTall beakrushCyperaceaeSCG4S3S4
Rhynchospora nitens
(Psilocarya nitens)
Short-beak beak-rushCyperaceaeEG4?S1
Rhynchospora recognita
(Rhynchospora globularis)
Globe beak-rushCyperaceaeEG5?S1
Rhynchospora scirpoides
(Psilocarya scirpoides)
Bald-rushCyperaceaeTG4S2
Ribes oxyacanthoidesNorthern gooseberryGrossulariaceaeSCG5S3
Rubus acaulis
(Rubus arcticus ssp. acaulis)
Dwarf raspberryRosaceaeEG5T5S1
Rudbeckia subtomentosaSweet coneflowerAsteraceaeXG5SX
Ruellia humilisHairy wild petuniaAcanthaceaeTG5S1
Ruellia strepensSmooth ruelliaAcanthaceaeEG4G5S1
Rumex occidentalisWestern dockPolygonaceaeEG5S1
Ruppia maritima
(Ruppia spiralis)
Widgeon grassRuppiaceaeTG5S1
Sabatia angularisRosepinkGentianaceaeTG5S2
Sagina nodosaPearlwortCaryophyllaceaeTG5S2
Sagittaria montevidensis
(Sagittaria calycina, Lophotocarpus calycinus)
ArrowheadAlismataceaeTG4G5S1S2
Salix pellitaSatiny willowSalicaceaeSCG5S2
Salix planifoliaTea-leaved willowSalicaceaeTG5SH
Sanguisorba canadensisCanadian burnetRosaceaeEG5S1
Sarracenia purpurea f. heterophyllaYellow pitcher plantSarraceniaceaeTG5T1T2QS1
Saxifraga paniculataEncrusted saxifrageSaxifragaceaeTG5S1
Saxifraga tricuspidataPrickly saxifrageSaxifragaceaeTG4G5S2
Schoenoplectus americanus
(Scirpus olneyi)
Three-square bulrushCyperaceaeEG5S1
Schoenoplectus hallii
(Scirpus hallii)
Hall's bulrushCyperaceaeTG2G3S2
Scirpus clintonii
(Trichophorum clintonii)
Clinton's bulrushCyperaceaeSCG4S3
Scirpus torreyi
(Schoenoplectus torreyi)
Torrey's bulrushCyperaceaeSCG5?S2S3
Scleria paucifloraFew-flowered nut rushCyperaceaeEG5S1
Scleria reticularisNetted nut rushCyperaceaeTG4S2
Scleria triglomerataTall nut rushCyperaceaeSCG5S3
Scutellaria ellipticaHairy skullcapLamiaceaeSCG5S3
Scutellaria incanaSkullcapLamiaceaeXG5SX
Scutellaria nervosaSkullcapLamiaceaeEG5S1
Scutellaria ovataForest skullcapLamiaceaeTG5SX
Scutellaria parvulaSmall skullcapLamiaceaeTG4S2
Senecio congestus
(Tephroseris palustris)
Marsh fleabaneAsteraceaeXG5SX
Senecio indecorus
(Packera indecora)
Northern ragwortAsteraceaeTG5S1
Silene niveaEvening campionCaryophyllaceaeTG4?SNR
Silene stellataStarry campionCaryophyllaceaeTG5S2
Silene virginicaFire pinkCaryophyllaceaeEG5S1
Silphium integrifoliumRosinweedAsteraceaeTG5S2
Silphium laciniatumCompass plantAsteraceaeTG5S1S2
Silphium perfoliatumCup plantAsteraceaeTG5S2
Sisyrinchium atlanticumAtlantic blue-eyed-grassIridaceaeTG5S2
Sisyrinchium fuscatum
(Sisyrinchium farwellii)
Farwell's blue-eyed-grassIridaceaeXG5?SX
Sisyrinchium hastile
(Sisyrinchium albidum)
Blue-eyed-grassIridaceaeXGUGHQSX
Sisyrinchium strictumBlue-eyed-grassIridaceaeSCG2QS2
Smilax herbaceaSmooth carrion-flowerSmilacaceaeSCG5S3
Solidago bicolorWhite goldenrodAsteraceaeEG5S1
Solidago houghtoniiHoughton's goldenrodAsteraceaeLTTG3S3
Solidago missouriensisMissouri goldenrodAsteraceaeTG5S2
Spiranthes ovalisLesser ladies'-tressesOrchidaceaeTG5?S1
Sporobolus clandestinusDropseedPoaceaeEG5S1
Sporobolus heterolepisPrairie dropseedPoaceaeSCG5S3
Stellaria crassifoliaFleshy stitchwortCaryophyllaceaeEG5S1
Stellaria longipesStitchwortCaryophyllaceaeSCG5S2
Strophostyles helvulaTrailing wild BeanFabaceaeSCG5S3
Subularia aquaticaAwlwortBrassicaceaeEG5S1
Tanacetum huronense
(Tanacetum bipinnatum ssp. huronense)
Lake Huron tansyAsteraceaeTG5T4T5S3
Tipularia discolorCranefly orchidOrchidaceaeEG4G5S1
Tofieldia pusillaFalse asphodelLiliaceaeTG5S2
Tomanthera auriculata
(Agalinis auriculata)
Eared foxgloveScrophulariaceaeXG3SX
Tradescantia bracteataLong-bracted spiderwortCommelinaceaeXG5SX
Tradescantia virginianaVirginia spiderwortCommelinaceaeSCG5S2
Trichostema brachiatum
(Isanthus brachiatus)
False pennyroyalLamiaceaeTG5S1
Trichostema dichotomumBastard pennyroyalLamiaceaeTG5S2
Trillium nivaleSnow trilliumLiliaceaeTG4S2
Trillium recurvatumPrairie trilliumLiliaceaeTG5S2S3
Trillium sessileToadshadeLiliaceaeTG4G5S2S3
Trillium undulatumPainted trilliumLiliaceaeEG5S1S2
Triphora trianthophoraNodding pogonia or three birds orchidOrchidaceaeTG3G4S1
Triplasis purpureaSand grassPoaceaeSCG4G5S2
Trisetum spicatumDowny oat-grassPoaceaeSCG5S2S3
Utricularia inflata
(Utricularia radiata)
Floating bladderwortLentibulariaceaeEG5S1
Utricularia subulataBladderwortLentibulariaceaeTG5S1
Vaccinium cespitosumDwarf bilberryEricaceaeTG5S1S2
Vaccinium uliginosumAlpine blueberryEricaceaeTG5S2
Vaccinium vitis-idaeaMountain cranberryEricaceaeEG5S1
Valeriana edulis var. ciliata
(Valeriana ciliata)
Edible valerianValerianaceaeTG5T3S2
Valerianella chenopodiifoliaGoosefoot corn saladValerianaceaeTG5S1
Valerianella umbilicataCorn saladValerianaceaeTG3G5S2
Viburnum eduleSquashberry or mooseberryCaprifoliaceaeTG5S2S3
Viburnum prunifoliumBlack hawCaprifoliaceaeSCG5S3
Viola epipsilaNorthern marsh violetViolaceaeEG4SH
Viola novae-angliaeNew England violetViolaceaeTG4QS2
Viola pedatifidaPrairie birdfoot violetViolaceaeTG5S1
Vitis vulpinaFrost grapeVitaceaeTG5S1S2
Wisteria frutescensWisteriaFabaceaeTG5S1
Wolffia papulifera
(Wolffia brasiliensis, Wolffia punctata)
WatermealLemnaceaeTG4S1
Woodsia alpinaNorthern woodsiaDryopteridaceaeEG4S1
Woodsia obtusaBlunt-lobed woodsiaDryopteridaceaeTG5S1S2
Woodwardia areolataNetted chain-fernBlechnaceaeXG5SX
Zizania aquatica var. aquaticaWild ricePoaceaeTG5T5S2S3
Zizia apteraPrairie golden alexandersApiaceaeTG5S1S2