Attachment 1 2023 Rare Plant List.pdf

2023 Superior National Forest Rare Plant list COMMON NAME SCIENTIFIC NAME OCC DNR SNF HABITAT G Rank S Rank Siberian yarrow Achillea alpina 3 T Loamy soil in sunny/partly shaded wetland edges G5 S2

Climbing fumitory Adlumia fungosa 2 SC Growing on bare soil of tip-ups in variety of forest types, or crumbly cliff soils G4 S3

Moschatel Adoxa moschatellina 2 R9 North Shore moist northern hardwoods G5 SNR Wild chives Allium schoenoprasum 4 E North Shore veg mats along rocky shores of Lake Superior, rocky terrace or ledge near water G5 S1 Long-leaved arnica Arnica lonchophylla 2 T R9 Calcareous microhab; cliffs & ledges, cool & moist G5T5 S2 Maidenhair spleenwort Asplenium trichomanes ssp. Trichomanes 2 T R9 On cliffs & ledges in moist crevices of non-calcareous rock, in Rove Form. G5T5 S2 Alpine milk-vetch Astragalus alpinus 1 E R9 Sandy -gravelly fluctuating shorelines with sparse vegetation G5 S1 Swamp begger-tick Bidens discoidea 2 SC R9 Wet habitats;silty shores, hummocks in floating mats, partly submerged logs G5 S3 Alpine bistort Bistorta vivipara 2 T Wet cobble beaches and crevices in bedrock of Lake Superior shoreline G5 S2 Holboell's rockress Boechera retrofracta =(Arabis holboellii) 2 T In crevices of cliffs, frequently in Rove Formation G5 S2 Tailed grapefern Botrychium acuminatum 3 SC Sand dune on Park Point G1 S3 Upswept moonwort Botrychium ascendens 3 E Mine dump, old field, wet mesic forest adjacent to mesic hardwood forest G3 S1 Prairie moonwort Botrychium campestre 2 SC Old mine dumps G3G4 S3 Lance-leaf grape-fern Botrychium lanceolatum v. angustisegmentum 2 T R9 Northern hardwood forest, old fields, old logging roads and trails G5T4 S2 Slender moonwort Botrychium lineare 3 E Mine dump G2G3 S1 Common moonwort Botrychium lunaria 2 T R9 Open habitats such as old log landings, sawmill sites, old building sites G5 S2 Michigan moonwort Botrychium michiganense (=hesperium) 2 R9 Openings, clearings, old log landings, old gravel pits, embankments. SNR Mingan moonwort Botrychium minganense 2 SC Preferred habitat - northern hardwood forests G4G5 S3 Goblin fern Botrychium mormo 2 T R9 Mesic northern hardwoods, open understory, thick leaf layer G3 S2 Blunt-lobed grapefern Botrychium oneidense 2 T Moist woods near seasonal ponds, or jack pine forest on SNF G4 S2 Pale moonwort Botrychium pallidum 2 SC R9 Open,disturbed habitats, log landings, roadsides, sandy gravel pits G3 S3 Ternate grape-fern Botrychium rugulosum (=ternatum) 2 SC R9 Generally open habitats, such as old log landings and edges of trails G3 S3 Least grape-fern Botrychium simplex 2 SC R9 Generally open habitats like old log landings, roadside ditch, trails, old fields G5 S3 Pond reedgrass Calamagrostis lacustris (=C.stricta ssp. Inexpansa) 2 SC Rocky, sandy, gravely lake margins & beaches; rocky outcrops G5T5 S3 Purple reedgrass Calamagrostis purpurascens 1 E North facing slate or diabase cliffs G5 S1 Larger water-starwort Callitriche heterophylla 2 T Shallow margins of protected bays of lakes G5 S2 Floating marsh marigold Caltha natans 2 E R9 Shallow water of slow moving creeks, backwaters, oxbows, sloughs G5 S1 Calypso orchid Calypso bulbosa 2 R9 Lowland conifer forests;less extent in upland coniferous G5 SNR Cuckoo flower Cardamine pratensis var. palustris 2 T Edges of shallow pools in cedar swamp, or occasionally in open peatlands G5TU S2 Coastal sedge Carex exilis 2 SC Patterned fens G5 S3 Yellow sedge Carex flava 2 SC Calcareous bogs, meadows & lakeshores G5 S3 Garber's sedge Carex garberi 2 T Open rich fen, moist seepy shoreline rocks of Lake Superior G5 S2 Sedge Carex media (=norvegica ssp. inferalpina) 2 SC Cold woods, shores and rock crevices G5T5 S3 Michaux's sedge Carex michauxiana 2 SC Peaty areas, spring, floating bog mats, lakeshores G5 S3 New England sedge Carex novae-angliae 2 T R9 Mesic woods with sugar maple; ybirch/w.spruce forest G5 S2 Sedge Carex ormostachya 2 SC Sandy or rocky woods and clearings G4 SU Pale sedge Carex pallescens 2 E Peaty meadows, forest clearings&shrubby edge habitat, 1 known occur. in moist ditch near L. Sup G5 S1 Prairie sedge Carex praticola 1 SC N. facing cliffs or talus in Rove formation G5 S3 Ross' sedge Carex rossii 2 T R9 Rocky summits, dry exposed cliff faces, rocky slopes G5 S2 Northern singlespike sedge Carex scirpoidea 3 SC Forms carpets in crevices, mossy ledges, on open cliffs, outcrops G5 S3 Weak arctic sedge Carex supina var. spaniocarpa 1 E N. facing cliffs or talus in Rove formation G5T3T5 S1 Tinged sedge Carex tincta 1 Rocky shoreline on Basswood Lake G4G5 SNR Dry sedge Carex xerantica 2 SC Shallow, dry rocky soils on exposed crests of cliffs in Rove Formation G5 S3 Northern paintbrush Castilleja septentrionalis 3 E Damp rocky soil, Lake Superior shoreline G5 S1

Attachment 1 2023 Rare Plant List.xlsx 1

Spiny hornwort Ceratophyllum echinatum 2 Quiet, cold, acidic water, often in beaver ponds G4? SNR Twig-rush Cladium mariscoides 2 SC Patterned fens,lakeshore G5 S3 Water pygmyweed Crassula aquatica 3 T Ephemeral aquatic annual, mostly prairie rainwater pools. VNP: shallow water of bays G5 S2 Douglas's hawthorn Crataegus douglasii 2 SC R9 Rocky gravelly stream beds and and rocky, open borders of woods; N. Shore G5 S3 Ram's-head ladyslipper Cypripedium arietinum 2 T R9 Wide variety of forest habitats, forest, bogs, acidic, upland and lowland G3 S2 Laurentian bladderfern Cystopteris laurentiana 2 Cliffs and ledges, only known from North Shore G3 SNR Slender hairgrass Deschampsia flexuosa 2 T Dry, sandy, or rocky soil, often in association with pine forests, mostly along L. Superior shore G5 S2 Rough fruited fairy bells Disporum trachycarpum (=Prosartes trachy.) 1 E R9 Semi-open jack pine forest, with aspen, birch, shallow rocky soils G5 S1 Rock whitlow grass Draba arabisans 2 SC Cliffs on Lake Superior G4 S3 Hoary whitlow grass Draba cana 2 E Cliffs on Lake Superior or in BWCAW G5 S1 Norwegian whitlow grass Draba norvegica 3 E Rocky shore of Lake Superior G5 S1 English sundew Drosera anglica 2 SC Mineotrophic shallow pools in patterned peatlands G5 S3 Linear-leaved sundew Drosera linearis 2 SC R9 Minerotrophic water tracks in patterned peatlands G4 S3 Waterwort Elatine triandra 2 SC Aquatic sandy area, Canadian side of LaCroix G5 S3 Olivaceous spikerush Eleocharis olivacea v. olivacea(=E. flavescens v olivacea) 2 T Muck or peat shorelines of small bog pools, bog ponds, or mucky lakeshore G5T4T5 S2 Neat spike-rush Eleocharis nitida 2 SC R9 Mineral soil in wetlands, often w/open canopy & disturbance e.g. ditches G4 S3 Mamillate spike-rush Eleocharis mamillata 1 Mucky shorelines of ponds or beaver drainages G4? SNR

Few-flowered spike-rush Eleocharis quinqueflora 2 SC Variety of wetlands, sedge mat, lake beach, river margin G5 S3 Robbins spikerush Eleocharis robbinsii 2 T Shallow water along shorelines, often in peat or muck over sand or gravel bottom G4G5 S2 Purple crowberry Empetrum eamesii 3 E Probably restricted to rocky shore on islands of Lake Superior G5T5 S1 Black crowberry Empetrum nigrum 3 E Moist ledges of Lake Superior shore rocks G5 S1

Bitter fleabane Erigeron acris v. kamtschaticus 2 E Steep canyon walls of North Shore streams, and rocky forested slopes near Lake Superior G5T4T5 S1 Hudson Bay eyebright Euphrasia hudsoniana var. ramosior 2 SC Exposed rock shores of Lake Superior G5?TNR S3 Autumn fimbristylis Fimbristylis autumnalis 2 SC Moist, sandy soil G5 S3 Northern oak fern Gymnocarpium robertianum 3 SC Lowland cedar swamps G5 S3 Appalachian fir clubmoss Huperzia appalachiana 2 SC R9 Shelves and crevices on cliffs/talus, and shrub dominated talus piles G5 S3 Rock clubmoss Huperzia porophila 2 T Ledges on cliffs and rock outcrops G4 S2 American marshpennywort Hydrocotyle americana 2 SC Hardwood swamps like black ash, springs, marshy ground G5 S3 Moor rush Juncus stygius 2 SC R9 Patterned peatlands, shallow pools in nonforested peatland, often w/ sedges G5 S3 Creeping rush Juncus subtilis 1 E R9 Sandy lakeshore - only known occurrence is BWCAW G4 S1 Vasey's rush Juncus vaseyi 2 Seasonally wet soil of road ditches, forested wetlands, disturbed areas G5? SNR

Creeping juniper Juniperus horizontalis 2 SC Moist, especially sandy soil G5 S3 Dwarf ground cherry Leucophysalis grandiflora 1 Gravelly or sandy disturbed sites G4? SNR Auricled twayblade Listera auriculata 1 E R9 Margin of lakes/streams, asso. w/ alder or spruce/fir forest, sand/gravel soil G3G4 S1 Broad-lipped twayblade Listera convallarioides 4 SC Cedar-spruce-balsam forest - weakly acidic swamp (1 historic occurrence) G5 S3 American shore-plantain Littorella uniflora 2 SC R9 Shallow margins of oliogotrophic lakes G5 S3

Small-flowered woodrush Luzula parviflora ssp. melanocarpa 2 T Equally likely in conifer swamps, mesic upland forest, or transition zone between the two G5T5 S2 White adder's mouth Malaxis monophyllos var. brachypoda (=M. brachypoda) 2 SC Sphagnum hummocks in conifer swamps; peat in hardwood swamp G4G5Q S3 Bog adder's mouth Malaxis paludosa 3 E Sphagnum hummocks in black spruce swamps; other bogs maybe G4 S1 Large-leaved sandwort Moehringia macrophylla 1 T R9 On cliffs or rock outcrops; pine forest w/shallow soils; open shrub layer G5 S2 False dropseed muhly Muhlenbergia uniflora 1 SC R9 Wet, sandy beaches; floating bog mats G5 S3 Broadleaf watermilfoil Myriophyllum heterophyllum 1 SC Shallow water of ponds and lakes G5 S3

Slender naiad Najas gracillima 2 SC Submerged in lakes, ponds with mud bottoms G5? S3

Attachment 1 2023 Rare Plant List.xlsx 2

Dwarf waterlily Nymphaea leibergii 2 T R9 Slow moving streams, beaver impoundments 1/2 meter deep G5 S2 Canada rice grass Oryzopsis canadensis (=Piptatherum canadense) 1 T R9 Sandy/gravelly soil: rp/jp plantation, borders, edges, trailsides, openings G5 S2 Chilean sweet cicely Osmorhiza berteroi 2 E R9 Northern hardwood, moist soil, gentle slopes G5 S1 Blunt-fruited sweet cicely Osmorhiza depauperata 1 SC Moist mixed aspen-birch-fir forest (E.Border Lks) G5 S3 Sticky locoweed Oxytropis viscida (=borealis var. viscida) 1 E R9 Slate cliff and talus slopes in east Border Lks. G5T4? S1

Elegant groundsel Packera indecora (=Senecio indecorus) 1 E Cool, moist, sandy, gravelly, rocky conditions; stream/lakeside to cliff tops; wide habitat range G5 S1

Franklin's phacelia Phacelia franklinii 2 T Annual; microdisturbances-cliffs, eroding slopes, talus, tip-ups, usu. near lake/stream G5 S2 Butterwort Pinguicula vulgaris 2 SC Veg mats in crevices of Lake Superior shore rocks and lakeshore G5 S3 Club-spur orchid Platanthera clavellata 2 SC Stunted black spruce swamp,floating bog mat, borrow pits, winter logging rds. G5 S3 Wolf's bluegrass Poa wolfii 3 SC Rocky cliff crevices & veg mats in crevices of Lake Superior shore rocks and lakeshore G4 S3 Western jacob's ladder Polemonium occidentale ssp. lacustre 2 E R9 Northern white cedar swamps G5?T2Q S1 Braun's holly fern Polystichum braunii v. purshii 2 T R9 Cool shady cliffs & slopes in northern hardwoods G5 S2

Algae-like pondweed Potamogeton confervoides 1 E Shallow water of bog pond with peaty bottom; acidic waters of bogs, ponds, & lakes G4 S1 Oakes' pondweed Potamogeton oakesianus 2 E R9 Quiet, acidic waters of bogs, ponds, and lakes G5 S1 Small shinleaf Pyrola minor 2 SC R9 Black sp. swamp, & ecotone betw. uplands and lowland alder/conifer swamp G5 S3 Lapland buttercup Ranunculus lapponicus 2 SC hummocks in conifer swamps G5 S3 Cloudberry Rubus chamaemorus 1 T R9 Lowland black spruce forest with sphagnum, acidic G5 S2 Kinnickinnick dewberry Rubus multifer 1 SC Sandy shorelines of lakes in Border Lakes region G5 S3

Swamp blackberry Rubus semisetosus 2 T Old clearing in FDn43b forest, shrub shore fen, old two track road, more in mesic ecotone G5 S2 Vermont bristleberry Rubus vermontanus 2 SC Open wet meadow dominated by sedges G5 S3

Knotty pearlwort Sagina nodosa ssp. borealis 3 E Crevices in bedrock adjacent to Lake Superior, near pools/waves of L.S. G5T5 S1 Satiny willow Salix pellita 2 T River sandbars, rocky shores of North Shore streams, shrubby floodplain G5 S2 Nodding saxifrage Saxifraga cernua 1 E R9 Cliffs, ledges, north facing diabase cliffs G5 S1 Encrusted saxifrage Saxifraga paniculata 2 SC R9 Cliffs, sheltered crevices & ledges of north facing cliffs G5 S3 No common name Schoenoplectus heterochaetus 1 Shallow marsh habitat of wetlands G5 SNR Georgia bulrush Scirpus georgianus 1 Shallow marsh habitat of wetlands G5 SNR Northern spikemoss Selaginella selaginoides 3 E Moist crevices on exposed rock of Lake Superior G5 S1 Soapberry Shepherdia canadensis 2 SC In fire dependent communities, at bases of cliffs/talus or on rocky slopes G5 S3 Case's ladies tressses Spiranthes casei var casei 3 Former iron mine tailings basin with young forest G4T4 S2 Sheathed pondweed Stuckenia vaginata 3 E Aquatic habitats G5 S1 Awlwort Subularia aquatica 2 T R9 Beach zone of sandy oligotrophic lakes G5 S2 Canada yew Taxus canadensis 2 R9 Uplands & lowlands, incl. cedar/ash swamps, N. hardwoods, aspen/birch G5 SNR Waxleaf meadowrue Thalictrum revolutum 1 Streamside habitat with black ash and alder; growing on cobbles G5 SNR Small false asphodel Tofieldia pusilla 2 E R9 Rock crevices and pools along Lake superior; often with mosses G5 S1 Torrey's mannagrass Torreyochloa pallida 2 SC Shorelines and shallow water of streams, lakes, vernal pools, and beaver ponds G5 S3 Clinton's bulrush Trichophorum clintonii 2 T Aspen and other upland forest, dry fields & thickets, associated with disturbance G4 S2

Spike trisetum Trisetum spicatum 2 SC Crevices in Lake Superior shoreline bedrock G5 S3 Eastern hemlock Tsuga canadensis 3 E Moist acidic soil on rocky slopes and ravines G5 S1 Hidden-fruited bladderwort Utricularia geminiscapa 2 T Acid lakes and pools in open bogs G4G5 S2 Lavender bladderwort Utricularia resupinata 2 T Sandy soil or shallow water of lakes & ponds G4 S2 Dwarf bilberry Vaccinium caespitosum 2 Sandy and gravely soils; circumboreal G5 SNR

Attachment 1 2023 Rare Plant List.xlsx 3

Alpine bilberry Vaccinium uliginosum 3 E Moist rock crevices on exposed rocky shore of Lake Superior G5 S1 Lance-leaved violet Viola lanceolata 2 T R9 Wet sandy shores, peaty meadows, wetland margins, fluctuating water levels G5 S2 Arrowleaf violet Viola sagittata 1 Bedrock outcrop - woodland with red oak, jp, rp - growing in crevices of bedrock G5 SNR Primrose violet Viola x primulifolia 1 Seasonally inundated riverine shoreline under sandcherry and Spiraea alba GNA SNR

Barren strawberry Waldsteinia fragarioides 2 SC R9 Upland pine forest and other mesic woods habitats G5 S3

Alpine woodsia Woodsia alpina 2 T Crevices and ledges of moist partially shaded cliffs, North Shore as well as inland G4 S2 Smooth woodsia Woodsia glabella 2 T R9 Moist, north facing cliffs assoc w/ Lake Superior G5 S2 Oregon woodsia Woodsia oregana var. cathcartiana 2 SC Damp, shaded calcareous rocks G5T5 S3 Rocky Mountain woodsia Woodsia scopulina ssp. Laurentiana 2 T North facing slate/diabase cliffs, calcareous microhabitats G5T3T5 S2 Montane yellow-eyed grass Xyris montana 2 SC Fens, peaty margins of ponds G5 S3

BRYOPHYTES Atrichum tenellum 2 SC G4G5 S3 Aulacomnium androgynum 3 SC G5 S3 Bryum cyclophyllum SC G4G5 S3 Buxbaumia aphylla 1 SC Pioneer species of disturbed, acid, sandy, or clay soils, road banks, woods trails; red oak forest G4G5 S3 Cryptocolea imbricata T G3 S2 Cynodontium schisti T G3G5 S2 Encalypta procera SC G5 S3 Frullania selwyniana 1 SC R9 Lowland cedar swamps on bark of white cedar G2G3 S3 Heterocladium dimorphum SC G5 S3 Lescuraea saxicola T G4G5 S2

Goblin's gold Schistostega pennata 1 E Rock crevices with high humidity G3G4 S1 Sphagnum compactum T G5 S2 Splachnum ampullaceum 1 On moose dung in forested and non-forested peatlands and alder swamps G5 SNR

Red parasol moss Splachnum rubrum 1 E On moose dung in forested and non-forested peatlands and upland forest G5 S1 Tetraplodon angustatus 1 On carnivore dung and decaying carcasses G5 SNR Tetraplodon mnioides 1 G5 SNR Tortella inclinata SC G4G5 SNR

A liverwort Trichocolea tomentella 3 T In cedar swamp or black ash swamp G5 S2

FUNGI Fuscoboletinus weaverae 3 E Humus in sandy soil of mixed decid/conif. forest S1 Sarcosoma globosum 1 SC Fire dependent forest S3

LICHENS Amygdalaria panaeola 1 SC Siliceous rock; rock outcrops, cliffs, talus, in humid settings like near water bodies G3G5 S3 Anaptychia crinalis 2 SC Bases of young black ash (3-4 DBH) in very wet but old black ash bogs G5 S3 Arctoparmelia centrifuga 1 SC R9 Bare rocks of talus slopes, exposed to sun G5 S3 Arctoparmelia subcentrifuga 2 SC R9 Bare rocks of talus slopes, exposed to sun G4G5 S3 Arthrorhaphis citrinella T Fire dependent forest non calcareous soil, acid soil G4G5 S2 Bryoria fuscescens 2 SC Forested and non-forested peatland, ecotone between upland/lowland; fire dependent forest G5 S3 Caloplaca parvula 2 E R9 Bases of young black ash in black ash swamps G1G2 S1 Caloplaca stellata SC G3G5 S3

Cetraria aurescens (=Ahtiana aurescens) 2 SC R9 Conifer bark in old cedar swamps, also black spruce swamps G3G5 S3

Attachment 1 2023 Rare Plant List.xlsx 4

Cetraria oakesiana (Allocetraria oakesiana) 2 T

Generally in lowland conifer forest or fire dependent forest that has not experienced recent disturbance, often spruce/fir; tree bases in cool, moist, humid habitat; shady, favors older trees G4G5 S2

Cladonia wainioi (=C. pseudorangiformis) 2 SC R9 On rock outcrops and thin soil G4G5 S3 Coccocarpia palmicola 3 T Spruce/fir forest; bases of decid. trees & mossy rocks G5 S2 Dermatocarpon moulinsii 1 E Bare exposed rock outcrops and rock faces/cliffs GNR S1 Lecanora epanora T Talus, cliff GNR S2 Lobaria scrobiculata 2 E Fire dependent forest; wet forest community; rock faces in FDn forest G4 S1 Melanelia subolivacea SC G5 S3 Menegazzia terebrata 1 SC R9 Cedar swamps, especially old growth bases of cedar trees G4? S3 Ochrolechia androgyna SC G4G5 S3

Parmelia stictica (=Punctelia stictica) 3 E Rocky areas near Lake Superior shore G3G5 S1 Parmelia stuppea (=Parmotrema stuppeum) T On deciduous or coniferous trees in open woods, swamps G4G5 S2 Peltigera venosa 2 SC R9 Soil and moist cliffs, tip-up mounds G5 S3 Platismatia glauca SC G5 S3 Plectocarpon triebeliae Lichenicolous fungi, grows on Lobaria quercizans

Pannaria pezizoides (=Protopannaria pezizoides) 1 T Cliff along Kadunce River; CTn42a - Wet Mafic Cliff (northern), and cedar swamps G5 S2 Pseudocyphellaria crocata 2 E R9 Mossy rocks/trees in shaded, humid sites; FDn43; swamps; near lakes G4? S1 Ramalina roesleri T Fire dependent forest G5 S2

Ramalina thrausta 1 SC R9 Old growth cedar swamps G5 S3 Rinodina wetmorei 1 Growing on black ash or cedar trunks in ash or cedar lowland forest GNR SNR Stereocaulon pileatum SC Silicaceous rocks in shady sites near wetlands G2G4 S3 Sticta fuliginosa 2 SC R9 On hardwoods in humid, old growth cedar or ash bogs G3G5 S3 Thelia hirtella SC G5 S3 Umbilicaria hirsuta 1 On cliffs and rock outcrops G2G4 SNR Umbilicaria torrefacta 1 E Bare, sunny, exposed rocks on rocky ridges G5 S1 Usnea longissima 1 SC R9 On old conifers in moist situations, often in or near a swamp stand G4 S3

LEGEND

1=only documented occurrence in MN are on NF E - State Endangered 2=occurrences docuemented both in and outside of NF T - State Threatened 3=occurences outside of NF but nearby SC - State Species of Concern 4=historical occurrence on NF R9 - Regional Foresters Sensitive Species

SNR/NNR - Not ranked

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2023 SNF Rare Plants