Vascular plants - threatened

Achillea sibirica Ledeb., Asteraceae -- Siberian yarrow

Allium cernuum Roth, Liliaceae -- nodding wild onion

Allium schoenoprasum L. var. sibiricum (L.) Hartm., Liliaceae -- wild chives

Ammophila breviligulata Fern., Poaceae -- beachgrass

Arabis holboellii Hornem. var. retrofracta (Graham) Rydb., Brassicaceae -- Holboell's rockcress

Arnica lonchophylla Greene, Asteraceae -- long-leaved arnica

Arnoglossum plantagineum Raf., Asteraceae -- tuberous Indian-plantain

Asclepias hirtella (Pennell) Woodson, Asclepiadaceae -- prairie milkweed

Asclepias sullivantii Engelm., Asclepiadaceae -- Sullivant's milkweed

Asplenium trichomanes L., Aspleniaceae -- maidenhair spleenwort

Aster shortii Lindl., Asteraceae -- Short's aster

Aureolaria pedicularia (L.) Raf., Scrophulariaceae -- fernleaf false foxglove

Besseya bullii (Eaton) Rydb., Scrophulariaceae -- kitten-tails

Botrychium lanceolatum (S.G. Gmelin) Angstr., Ophioglossaceae -- triangle moonwort

Botrychium lunaria (L.) Sw., Ophioglossaceae -- common moonwort

Botrychium rugulosum W.H. Wagner, Ophioglossaceae -- St. Lawrence grapefern

Carex careyana Torr. ex Dewey, Cyperaceae -- Carey's sedge

Carex conjuncta Boott, Cyperaceae -- jointed sedge

Carex davisii Schwein. & Torr., Cyperaceae -- Davis' sedge

Carex festucacea Schkuhr ex Willd., Cyperaceae -- fescue sedge

Carex garberi Fern., Cyperaceae -- Garber's sedge

Carex jamesii Schwein., Cyperaceae -- James' sedge

Carex katahdinensis Fern., Cyperaceae -- Katahdin sedge

Carex laevivaginata (Kukenth.) Mackenzie, Cyperaceae -- smooth-sheathed sedge

Carex laxiculmis Schwein., Cyperaceae -- spreading sedge

Carex sterilis Willd., Cyperaceae -- sterile sedge

Crassula aquatica (L.) Schoenl., Crassulaceae -- pigmyweed

Crataegus douglasii Lindl., Rosaceae -- black hawthorn

Cyperus acuminatus Torr. & Hook., Cyperaceae -- short-pointed umbrella--sedge

Cypripedium arietinum R. Br., Orchidaceae -- ram's-head lady's-slipper

Diplazium pycnocarpon (Spreng.) M. Broun, Dryopteridaceae -- narrow-leaved spleenwort

Dryopteris marginalis (L.) Gray, Dryopteridaceae -- marginal shield-fern

Eleocharis nitida Fern., Cyperaceae -- neat spike-rush

Eleocharis olivacea Torr., Cyperaceae -- olivaceous spike-rush

Eleocharis rostellata Torr., Cyperaceae -- beaked spike-rush

Eupatorium sessilifolium L., Asteraceae -- upland boneset

Floerkea proserpinacoides Willd., Limnanthaceae -- false mermaid

Heteranthera limosa (Sw.) Willd., Pontederiaceae -- mud plantain

Huperzia porophila (Lloyd & Underwood) Holub, Lycopodiaceae -- rock clubmoss

Lespedeza leptostachya Engelm., Fabaceae -- prairie bush clover(T)? factsheet

Melica nitens (Scribn.) Nutt. ex Piper, Poaceae -- three-flowered melic

Moehringia macrophylla (Hook.) Fenzl, Caryophyllaceae -- large-leaved sandwort

Napaea dioica L., Malvaceae -- glade mallow

Nymphaea leibergii (Morong) Boivin, Nymphaeceae -- small white waterlily

Paronychia canadensis (L.) Wood, Caryophyllaceae -- Canadian forked chickweed

Phegopteris hexagonoptera (Michx.) Fee, Thelypteridaceae -- broad beech-fern

Plantago elongata Pursh, Plantaginaceae -- slender plantain

Poa paludigena Fern. & Wieg., Poaceae -- bog bluegrass

Polystichum acrostichoides (Michx.) Schott, Dryopteridaceae -- Christmas fern

Rhynchospora capillacea Torr., Cyperaceae -- hair-like beak-rush

Rotala ramosior (L.) Koehne, Lythraceae -- tooth-cup

Rubus chamaemorus L., Rosaceae -- cloudberry

Salicornia rubra Nelson, Chenopodiaceae -- red saltwort

Saxifraga paniculata P. Mill., Saxifragaceae -- encrusted saxifrage

Scleria verticillata Muhl., Cyperaceae -- whorled nut-rush

Scutellaria ovata Hill, Lamiaceae -- ovate--leaved skullcap

Shinnersoseris rostrata (Gray) S. Tomb, Asteraceae -- annual skeletonweed

Silene nivea (Nutt.) Muhl. ex Otth., Caryophyllaceae -- snowy campion

Subularia aquatica L., Brassicaceae -- awlwort

Sullivantia sullivantii (Torr. & Gray) Britt., Saxifragaceae -- reniform sullivantia

Vaccinium uliginosum L., Ericaceae -- alpine bilberry

Valeriana edulis Nutt. var. ciliata (Torr. & Gray) Cronq., Valerianaceae -- valerian

Viola lanceolata L., Violaceae -- lance-leaved violet

Viola nuttallii Pursh, Violaceae -- yellow prairie violet

Woodsia glabella R. Br., Dryopteridaceae -- smooth woodsia

Woodsia scopulina D.C. Eat., Dryopteridaceae -- Rocky Mountain woodsia