divaricata — white wood aster Gentianopsis virgata subsp. victorinii — Victorin's gentian Gymnocladus dioicus — Kentucky coffee-tree Halimolobos virgata — slender mouse-ear-cress Hydrastis canadensis — goldenseal Hydrocotyle umbellata — water-pennywort Hymenoxys herbacea — lakeside daisy Iris lacustris — dwarf lake iris Iris missouriensis — western blue flag Isoetes bolanderi — Bolander's quillwort Justicia americana — American water-willow Lachananthes caroliniana — redroot Liatris spicata — dense blazing star Limnanthes macounii — Macoun's meadowfoam Lophiola aurea — golden crest Phlox speciosa subsp. occidentalis — showy phlox Polemonium vanbruntiae — van Brunt's Jacob's-ladder Polystichum lemmonii — Lemmon's holly fern Polystichum scopulinum — mountain holly fern Ptelea trifoliata — common hoptree Sabatia kennedyana — Plymouth gentian Salix chlorolepis — green-scaled willow Sanicula bipinnatifida — purple sanicle Sericocarpus rigidus — white-top aster Smilax rotundifolia (Great Lakes plains population) — round-leaved greenbrier Symphyotrichum anticostense — Anticosti aster Symphyotrichum laurentianum — Gulf of St. Lawrence aster Symphyotrichum praealtum — willowleaf aster Symphyotrichum prenanthoides — crooked-stem aster Symphyotrichum sericeum — western silvery aster Tradescantia occidentalis — western spiderwort Vaccinium stamineum — deerberry Viola praemorsa subsp. praemorsa — yellow montane violet, praemorsa subspecies Yucca glauca — soapweed Vascular plants of special concern Achillea millefolium var. megacephalum — large-headed woolly yarrow Armeria maritima subsp. interior — Athabasca thrift Arnoglossum plantagineum — tuberous Indian-plantain Asplenium scolopendrium var. americanum — American hart's-tongue fern Astragalus robbinsii var. fernaldii — Fernald's milk-vetch Bidens amplissima — Vancouver Island beggarticks Cicuta maculata var. victorinii — Victorin's water-hemlock Clethra alnifolia — sweet pepperbush Deschampsia mackenzieana — Mackenzie hairgrass Dryopteris arguta — coastal wood fern Fraxinus quadrangulata — blue ash Hibiscus moscheutos — swamp rose-mallow Isoetes prototypus — prototype quillwort Juncus caesariensis — New Jersey rush Lilaeopsis chinensis — eastern lilaeopsis Potamogeton hillii — Hill's pondweed Psilocarphus brevissimus (prairie population) — dwarf woolly-heads Psilocarphus elatior (prairie population) — tall woolly-heads Rosa setigera — climbing prairie rose Salix brachycarpa var. psammophila — sand dune short-capsuled willow Salix silicicola — felt-leaf willow Salix turnorii — Turnor's willow Solidago houghtonii — Houghton's goldenrod Solidago riddellii — Riddell's goldenrod Tanacetum huronense var. floccosum — floccose tansy Mosses Extirpated mosses Ptychomitrium incurvum — incurved grizzled moss Endangered mosses Bartramia stricta — rigid apple moss Bryoandersonia illecebra — spoon-leaved moss Entosthodon rubiginosus — rusty cord-moss Fabronia pusilla — silver hair moss Fissidens pauperculus — poor pocket moss Scouleria marginata — margined streamside moss Threatened mosses Bartramia halleriana — Haller's apple moss Pterygoneurum kozlovii —