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Utah globally rare plant lists and guide references
 
List of all species by name (with links to descriptions/diagrams/photos)
Species Status list (PDF)
Species By Soil Type (PDF)
Species By Habitat Type (PDF)
Species By County (PDF)
Species By Land Manager (PDF)
1991 Field Guide Cross Reference List (PDF)
1991 Field Guide Comments, Updates and Errata
Utah Map with county names
Utah map
Utah globally rare plants

Species list (total of 266, 24 federally listed, 1 candidate)
 
For G-rank explanation, see NatureServe Conservation Status
 
ESA status codes: LE=listed as endangered; LT=listed as threatened; C=Candidate species; EM=Emergency listing package submitted; NOR=Notice of review
 
Last update: 12/13/07 What's new
 
  Formal (scientific) name
(click for facing guide book pages)
Informal (common) name Family common name G-rank
ESA status
 
Aliciella cespitosa Rabbit valley gilia Phlox G2
formerly C as Gilia caespitosa NOR 12/15/80, removed CNOR 9/12/06
Aliciella tenuis Mussentuchit gilia Phlox G1
 
Allium geyeri var. chatterleyi Chatterley onion Lily G4G5T2
 
Allium passeyi Passey onion Lily G1
 
Androsace chamaejasme var. carinata Sweet-flowered rock jasmine Primose G5T4
 
Angelica wheeleri Utah angelica Parsley (Carrot) G2
 
Aquilegia desolaticola Desolation Canyon columbine Buttercup GNR
Aquilegia flavescens var. rubicunda LinkTrail columbine Buttercup G5T1
 
Aquilegia formosa var. fosteri Foster columbine Buttercup G5TNR
 
Aquilegia grahamii Graham's columbine Buttercup G1
Aquilegia loriae Lori's columbine Buttercup GNR
 
Arabis beckwithii Beckwith rockcress Mustard G2?
 
Arabis falcatoria Grouse Creek arabis Mustard G1Q
 
Arabis glabra var. furcatipilis Tower mustard Mustard G5TNR
 
Arabis lasiocarpa Wasatch rockcress Mustard G3
 
Arabis pulchra var. duchesnensis
This taxon will be raised to a species under the genus Boechera in an upcoming publication. Studies have shown that it is a self-propagating, apomictic hybrid between Boechera formosa (Arabis pulchra var. pallens) and Boechera pallidfolia (Arabis selbyi). It is also now known, in addition to at least two localities in Duchesne County, Utah, from one locality in San Juan County, Utah and several in New Mexico.
Duchesne rockcress Mustard G5T1
 
Arabis schistacea Divided rockcress Family G3?
 
Arabis vivariensis Park rockcress Mustard  
Arctomecon humilis Dwarf bearclaw poppy Poppy G1
LE 11/6/79
 
Artemisia campestris var. petiolata Petiolate wormwood Sunflower G5T1?
 
Artemisia norvegica var. piceetorum Spruce wormwood Sunflower  
 
Asclepias cutleri Cutler milkweed Milkweed G3
Asclepias welshii Welsh's milkweed Milkweed G1
LT 10/28/87
 
Asplenium adiantum-nigrum Black spleenwort Fern G5
(S1 in U.S.)
 
Aster kingii var. barnebyana Barney woodyaster Sunflower G3T1
(Tonestus kingii var. barnebyana)
 
Aster welshii Welsh aster Sunflower G2
Astragalus ampullarioides Shivwits milkvetch Pea G1Q
LE 9/28/01
 
Astragalus ampullarius Gumbo milkvetch Pea G2
 
Astragalus anserinus Goose Creek milkvetch Pea G2
Astragalus concordius Harmony milkvetch Pea  
 
Astragalus consobrinus Bicknell milkvetch Pea G2G3
 
Astragalus cronquistii Cronquist milkvetch Pea G2
 
Astragalus cutleri Cutler milkvetch Pea  
Astragalus desereticus Deseret milkvetch Pea G1
LT 10/20/99
 
Astragalus diversifolius Mesic milkvetch Pea G2
 
Astragalus equisolensis Horseshoe milkvetch Pea G5T1 (Astragalus desperatus var. neeseae)
formerly C NOR 9/27/85, removed CNOR 9/12/06
 
Astragalus hamiltonii Hamilton's milkvetch Pea G1
 
Astragalus harrisonii Harrison's milkvetch Pea G2G3
 
Astragalus henrimontanensis Dana milkvetch Pea  
Astragalus holmgreniorum Holmgren milkvetch Pea G1
LE 9/28/01
 
Astragalus iselyi Isley milkvetch Pea G1
 
Astragalus jejunus var. jejunus Starveling milkvetch Pea  
 
Astragalus laccoliticus Caineville milkvetch Pea  
 
Astragalus lentiginosus var. pohlii Pohl's milkvetch Pea  
 
Astragalus limnocharis var. limnocharis Navajo Lake milkvetch Pea G2T1
 
Astragalus limnocharis var. tabulaeus Table Cliff milkvetch Pea G2T?
 
Astragalus loanus Loa milkvetch Pea G1
 
Astragalus montii Heliotrope milkvetch Pea G2T1 (A. limnocharis var. montii)
LT 11/6/87
 
Astragalus monumentalis Monument milkvetch Pea G4
 
Astragalus musiniensis Ferron milkvetch Pea G3
 
Astragalus oophorus var. lonchocalyx Pink egg milkvetch Pea  
 
Astragalus perianus Rydberg milkvetch Pea G3
(formerly LT - see below)
 
Astragalus piscator Fisher milkvetch Pea G2G3
 
Astragalus pubentissimus var. peabodianus Peabody milkvetch Pea  
 
Astragalus sabulosus var. sabulosus Cisco milkvetch Pea G1T1
 
Astragalus sabulosus var. vehiculus Stagecoach milkvetch Pea G1T1
 
Astragalus striatiflorus Escarpment milkvetch Pea G3
 
Astragalus subcinereus var. basalticus Basalt milkvetch Pea  
 
Astragalus uncialis Currant milkvetch Pea G2
 
Astragalus welshii Welsh milkvetch Pea G2G3
 
Astragalus zionis var. vigulus Guard milkvetch Pea  
 
Atriplex canescens var. gigantea Dunes four-wing saltbush Goosefoot G5T1
 
Botrychium crenulatum Wavy moonwort Adder's tongue G3
 
Botrychium lineare Slender moonwort Adder's tongue G1
C 6/6/01, removed CNOR 12/6/07
 
Botrychium paradoxum Paradox moonwort Adder's tongue G2
 
Caesalpinia repens Creeping rush-pea Pea G2
 
Camissonia atwoodii Atwood camissonia Evening primrose G2
 
Camissonia bairdii Baird camissonia Evening primrose G1
 
Camissonia exilis Slender camissonia Evening primrose G1
 
Camissonia gouldii Gould camissonia Evening primrose G1?
 
Carex curatorum Canyonlands sedge Sedge G2
 
Carex haysii Hays sedge Sedge  
 
Carex specuicola Navajo sedge Sedge G2
LT 5/8/85
 
Castilleja aquariensis Aquarius paintbrush Figwort G2
formerly C NOR 12/15/80, removed CNOR 9/12/06
 
Castilleja parvula var. parvula Tushar paintbrush Figwort G2TNR
 
Castilleja parvula var. revealii Reveal paintbrush Figwort G2TNR
 
Ceanothus greggii var. franklinii Franklin ceanothus Buckthorn G5T1T2
 
Chrysothamnus nauseosus var. psilocarpus Huntington rabbitbrush Sunflower G5T1T2
 
Cirsium ownbeyi Ownbey thistle Sunflower G3
 
Cirsium virginense
C. virginense has been lumped with C. mohavense in the Flora of North America (vol 19, pg 134), and the distinction between perennial (C. virginense) and biennial (C. mohavense) may not be valid. Even if recognized as C. mohavense it would remain rare in Utah at the periphery of its range here, and since C. mohavense is a globally rare species.
Virgin thistle Sunflower G2
 
Cleomella palmeriana var. goodrichii Goodrich cleomella Caper G3G4T?
Corydalis caseana subsp. brachycarpa Wasatch fitweed Fumitory G5T2
 
Cryptantha compacta Mound cryptanth Borage G1
 
Cryptantha creutzfeldtii Creutzfeldt-flower Borage G2
 
Cryptantha grahamii Graham's cryptanth Borage G3
 
Cryptantha johnstonii Johnston's cryptanth Borage G1G2
 
Cryptantha jonesiana Jones cryptanth Borage G2G3
 
Cryptantha ochroleuca Yellowish cryptanth Borage G1?
 
Cryptantha osterhoutii Osterhout's cryptanth Borage G2G3
 
Cryptantha semiglabra Pipe Springs cryptanth Borage G1?
 
Cycladenia humilis var. jonesii Jones cycladenia Dogbane LT 5/5/86
 
Cymopterus acaulis var. higginsii Higgins spring-parsley Parsley  
 
Cymopterus acaulis var. parvus Small spring-parsley Parsley  
 
Cymopterus beckii Pinnate spring-parsley Parsley G1
 
Cymopterus minimus Least spring-parsley Parsley G1G2Q
 
Cymopterus purpureus var. jonesii Jones spring-parsley Parsley  
 
Cypripedium fasciculatum Purple slipper Orchid G4 (S1)
 
Cystopteris utahensis Utah bladder-fern Fern G3?
 
Dalea flavescens var. epica Hole-in-the-Rock prairie-clover Pea  
 
Dodecatheon dentatum var. utahense Wasatch shooting-star Primrose G4T1
 
Dodecatheon pulchellum var. zionense Zion shooting-star Primrose  
 
Draba brachystylis Wasatch draba Mustard G1G2
 
Draba burkei Burke's draba Mustard G3T2
(D. maguirei var. burkei)
 
Draba kassii Kass rockcress Mustard G1
 
Draba maguirei var. maguirei Maguire's draba Mustard G3T2
 
Draba maguirei var. stonei Stone's draba Mustard  
 
Draba ramulosa Belknap Peak draba Mustard G1
 
Draba sobolifera Creeping draba Mustard G2
 
Draba zionensis Zion draba Mustard  
 
Epilobium nevadense Nevada willowherb Evening primrose G2
 
Epipactis gigantea Giant helleborine Orchid G3G4
 
Erigeron canaani Canaan daisy Sunflower  
 
Erigeron carringtoniae Carrington's daisy Sunflower  
 
Erigeron cronquistii Cronquist's daisy Sunflower G2
 
Erigeron garrettii Garrett's daisy Sunflower G2
 
Erigeron huberi Huber's daisy Sunflower GNR
 
Erigeron kachinensis Kachina daisy Sunflower G2
 
Erigeron maguirei Maguire's daisy Sunflower G2
LT 6/19/96
 
Erigeron mancus La Sal daisy Sunflower G2
 
Erigeron proselyticus Cedar Canyon daisy Sunflower G2
 
Erigeron untermannii Untermann's daisy Sunflower G2
 
Erigeron zothecinus Alcove daisy Sunflower G1
 
Eriogonum aretioides Widtsoe buckwheat Buckwheat G2
 
Eriogonum batemanii var. ostlundii Elsinore buckwheat Buckwheat  
 
Eriogonum brevicaule var. loganum Logan buckwheat Buckwheat  
 
Eriogonum corymbosum var. cronquistii Cronquist's buckwheat Buckwheat  
 
Eriogonum corymbosum var. smithii Flat Top buckwheat Buckwheat G1
(as Eriogonum smithii)
 
Eriogonum nummulare var. ammophilum Ibex buckwheat Buckwheat  
 
Eriogonum pharnaceoides var. cervinum Wirestem buckwheat Buckwheat  
 
Eriogonum phoeniceum Scarlet buckwheat Buckwheat G1Q
 
Eriogonum racemosum var. nobile Bluff buckwheat Buckwheat  
 
Eriogonum racemosum var. zionis Zion buckwheat Buckwheat  
 
Eriogonum soredium Frisco buckwheat Buckwheat G1
 
Eriogonum spathulatum var. natum Son's buckwheat Buckwheat G2Q (E. natum)
 
Euphorbia nephradenia Utah spurge Spurge G2
 
Festuca dasyclada Utah fescue Grass  
 
Gilia latifolia var. imperialis Cataract gilia Phlox G4T2
 
Gilia tridactyla Tushar gilia Phlox G5T2
(Ipomopsis spicata subsp. tridactyla
 
Glaucocarpum suffrutescens Shrubby reed-mustard Mustard G1
LE 10/6/87
 
Gutierrezia pomariensis Orchard snakeweed Sunflower  
 
Habenaria zothecina Alcove bog-orchid Orchid G2
(Platanthera zothecina)
 
Hackelia ibapensis Deep Creek stickseed Borage G1
 
Haplopappus crispus Pine Valley goldenbush Sunflower G2
(Ericameria crispa)
 
Haplopappus lignumviridis Greenwood's goldenbush Sunflower G1
(Ericameria lignumviridis)
 
Haplopappus zionis Cedar Breaks goldenbush Sunflower G2
(Ericameria zionis)
 
Hedysarum occidentale var. canone Coal-cliffs sweetvetch Pea G5T2
 
Heterotheca jonesii Jones goldenaster Sunflower G2
 
Hymenoxys lapidicola Rock hymenoxyz Sunflower G1Q
 
Iris pariensis Paria iris Iris  
 
Ivesia shockleyi var. ostleri Ostler's Ivesia Rose G3G4T1
 
Ivesia utahensis Utah Ivesia Rose G2
 
Jamesia americana var. macrocalyx Wasatch Jamesia Saxifrage G5T2
 
Jamesia americana var. zionis Zion Jamesia Saxifrage G5T2
 
Jamesia tetrapetala Four-petal Jamesia Saxifrage G2
 
Lepidium barnebyanum Barneby's peppergrass Mustard G1
LE 9/28/90
 
Lepidium huberi Huber's pepperplant Mustard G1G2
 
Lepidium montanum var. alpinum Alpine pepperplant Mustard G5?T1
 
Lepidium montanum var. claronense Claron pepperplant Mustard G5?T1?
 
Lepidium montanum var. neeseae Neese's pepperplant Mustard G5?T2
 
Lepidium ostleri Ostler's pepperplant Mustard G1
 
Lesquerella garrettii Garrett's bladderpod Mustard G2
 
Lesquerella tumulosa Kodachrome bladderpod Mustard G1Q
LE 11/5/93
 
Lomatium graveolens var. clarkii Clark's lomatium Parsley G5?T?
 
Lomatium latilobum Canyonlands lomatium Parsley G1
 
Lupinus caudatus var. cutleri Cutler's lupine Pea G5T2
 
Lygodesmia grandiflora var. doloresensis Dolores rushpink Sunflower G1G2
(L. doloresensis)
 
Lygodesmia grandiflora var. entrada Entrada rushpink Sunflower G1Q
(L. entrada)
 
Mentzelia goodrichii Goodrich's blazingstar Stickleafr G1
 
Mentzelia multicaulis var librina Horse Canyon stickleaf Stickleaf G3T1
 
Mentzelia shultziorum Shultz stickleaf Stickleaf G1
 
Musineon lineare Wasatch musineon Parsley G2
 
Najas caespitosa Fish Lake naiad Naiad  
 
Oenothera flava var. acutissima Large yellow evening primrose Evening primrose G2
 
Oenothera murdockii Murdock's evening primrose Evening primrose GNR
 
Oreoxis trotteri Trotter's oreoxis Parsley G1
 
Papaver radicatum var. pygmaeum Alpine poppy Poppy  
 
Parrya rydbergii Uinta parrya Mustard  
 
Pediocactus despainii Despain's cactus Cactus G2
LE 9/16/87
 
Pediocactus sileri Gypsum cactus Cactus LE 11/26/79 reclassified LT 12/27/93
 
Pediocactus winkleri Winkler's cactus Cactus G2
LT 8/20/98
 
Pediomelum aromaticum var. barnebyi Barneby's breadroot Pea G3T?
 
Pediomelum aromaticum var. tuhyi Tuhy's breadroot Pea G3T?
 
Pediomelum epipsilum Kane breadroot Pea G4?T1
(P. megalanthum var. epipsilum)
 
Pediomelum pariense Paria breadroot Pea G2G3
 
Penstemon abietinus Firleaf penstemon Figwort (Snapdragon) G2?
 
Penstemon acaulis var. acaulis Stemless penstemon Figwort G2TNR
 
Penstemon ammophilus Sandloving penstemon Figwort G2
 
Penstemon angustifolius var. dulcis Sweet penstemon Figwort G5T2
 
Penstemon bracteatus Platy penstemon Figwort G2
 
Penstemon caespitosus var. suffruticosus Tushar penstemon Figwort G2Q
(P. tusharensis)
 
Penstemon compactus Mt. Naomi penstemon Figwort G2
 
Penstemon duchesnensis Duchesne penstemon Figwort G4G5T1T2
(P. dolius var. duchesnensis)
 
Penstemon flowersii Flowers penstemon Figwort G1
 
Penstemon franklinii Franklin's penstemon Figwort G1
 
Penstemon gibbensii Gibbens penstemon Figwort G1
 
Penstemon goodrichii Goodrich's penstemon Figwort G2
Penstemon grahamii Graham's penstemon Figwort G2
C NOR 11/28/83
EM 10/08/02,
removed as C 12/19/06
 
Penstemon idahoensis Idaho penstemon Figwort G2
 
Penstemon navajoa Navajo Mountain penstemon Figwort G1
 
Penstemon parvus Aquarius penstemon Figwort G2
 
Penstemon pinorum Pinyon penstemon Figwort G1
 
Penstemon scariosus var. albifluvis White River penstemon Figwort C NOR 11/28/83
Penstemon scariosus var. cyanomontanus Blue Mountain penstemon Figwort G4T2
 
Penstemon tidestromii Tidestrom's penstemon Figwort G2G3
 
Penstemon wardii Ward's penstemon Figwort G2G3
 
Perityle specuicola Alcove rock-daisy Sunflower G1
Petalonyx parryi Parry petalonyx Stickleaf G2G3
 
Phacelia argillacea Clay phacelia Waterleaf G1
LE 9/28/78
 
Phacelia cronquistiana Cronquist's phacelia Waterleaf  
 
Phacelia howelliana Howell's phacelia Waterleaf G2
 
Phacelia indecora Bluff phacelia Waterleaf G1
 
Phacelia pulchella var. atwoodii Atwood's pretty phacelia Waterleaf G5T1
 
Phacelia sabulonum Pavement phacelia Waterleaf G5T1
(P. pulchella var. sabulonum)
 
Phacelia utahensis Utah phacelia Waterleaf G2
 
Phlox cluteana Navajo Mountain phlox Phlox G2
 
Phlox opalensis Bridger Basin phlox Phlox G3
 
Physaria lepidota var. membranacea Lepidote twinpod Mustard G3T2?
 
Physaria stylosa Duchesne River twinpod Mustard G1
 
Podistera eastwoodiae Eastwood podistera Parsley G3
 
Potentilla angelliae Angell's cinquefoil Rose G1
 
Potentilla cottamii Cottam's cinquefoil Rose G1
 
Primula domensis House Range primrose Primrose G1
 
Primula maguirei Maguire's primrose Primrose G1
LT 8/21/85
 
Proatriplex pleiantha Four-corners orach Goosefoot G3
 
Psorothamnus polydenius var. jonesii Jones indigo bush Pea G5T1T2
 
Psorothamnus thompsoniae var. whitingii Whiting's indigo-bush Pea G3?T2
 
Ranunculus aestivalis Autumn butterup Buttercup G1
LE 7/21/89
 
Salix arizonica Arizona willow Willow G2G3
 
Salvia columbariae var. argillacea Chinle chia Mint G5TNR
 
Schoenocrambe argillacea Clay schoenocrambe Mustard G1
LT 1/14/92
 
Schoenocrambe barnebyi Barneby's schoenocrambe Mustard G1
LE 1/14/92
Sclerocactus brevispinus
Listed under the Endangered Species Act via the umbrella of S. glaucus.
Pariette cactus Cactus G1
EM 4/18/05
 
Sclerocactus glaucus
We identify this taxon by this name here only because it is still listed under the Endangered Species Act by this name. Under most current treatments, only plants that occur in Colorado are recognized as S. glaucus. We will in due course be changing the name used to identify these plants to the misnomer Sclerocactus wetlandicus.
Uinta basin hookless cactus Cactus LT 10/11/79
 
Sclerocactus wrightiae Wright's fishhook cactus Cactus G2
LE 10/11/79
 
Selaginella utahensis Utah spikemoss Spikemoss G2G3
 
Senecio castoreus Beaver Mountain groundsel Sunflower G1
(Packera castoreus)
 
Senecio fremontii var. inexpectatus Dwarf mountain groundsel Sunflower G5T1
 
Senecio malmstenii Podunk groundsel Sunflower G1
(Packera malmstenii)
 
Senecio musiniensis Musiena groundsel Sunflower G1
 
Silene petersonii Maguire's campion Pink G2G3
Sphaeralcea caespitosa var. caespitosa Jones globemallow Mallow G2TNR
Sphaeralcea fumariensis Smokey Mountain mallow Mallow GNR
Sphaeralcea gierischii Gierisch globemallow Mallow G1
 
Sphaeralcea janeae Jane's globemallow Mallow G1
 
Sphaeralcea psoraloides Psoralea globemallow Mallow G2
 
Sphaeromeria capitata Head sphaeromeria Sunflower G3
 
Sphaeromeria ruthiae Ruth's sphaeromeria Sunflower G2
 
Spiranthes diluvialis Utes lady's tresses Orchid G2
LT 1/17/92
 
Stephanomeria tenuifolia var. uintaensis Uinta wirelettuce Sunflower G5T1
(S. minor var. uintaensis)
Swertia gypsicola White River swertia Gentian G1
 
Talinum thompsonii Thompson's talinum Primrose G1
 
Thelesperma pubescens var. caespitosum Duchesne greenthread Sunflower G1TNR
 
Thelesperma pubescens var. pubescens Uinta greenthread Sunflower G1TNR
 
Thelesperma windhamii Alpine greenthread Sunflower G5T2
(T. subnudum var. alpinum)
 
Thelypodiopsis ambigua var. erecta Kanab thelypody Mustard G2G3
 
Townsendia aprica Last chance townsendia Sunflower G2
LT 8/21/85
 
Townsendia jonesii var. lutea Sigurd townsendia Sunflower G4T2
 
Townsendia montana var. caelilinensis Skyline townsendia Sunflower G4T2T3
(T. alpigena var. caelilinensis)
 
Trifolium friscanum Frisco clover Pea G1
 
Viguiera soliceps Tropic goldeneye Sunflower G2
(Heliomeris soliceps)
 
Viola charlestonensis Charleston Mountain violet Violet G3Q
 
Viola clauseniana Clausen's violet Violet G1
 
Viola frank-smithii Frank Smith's violet Violet G1
 
Viola lithion Rock violet Violet G1G2
 
Xylorhiza cronquistii Cronquist's woodyaster Composite G1Q
 
Xylorhiza glabriuscula var. linearifolia Moab woodyaster Sunflower G4T1T2
 
Zigadenus vaginatus Alcove death camas Lily G2


Species formerly federally listed in Utah
 
Echinocereus triglochidiatus var. inermis: listed as endangered 11/7/79, delisted 9/22/93 (no longer considered a valid taxon - this "phase" still warrants and receives management attention)
 
Echinocereus engelmanii var. purpureus: listed as endangered 10/11/79, delisted 11/27/89 (no longer considered a valid taxon)
 
Astragalus perianus: listed as threatened 4/26/78, delisted 9/14/89 (species was listed prematurely prior to being properly surveyed, the indication that it "recovered" by FWS is not accurate; still considered rare; first plant species to be delisted under the Endangered Species Act and for reasons unrelated to taxonomy, delisting action was initiated by Dr. Duane Atwood then of the USFS)


Copyright 2003-2007 Utah Native Plant Society