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Lomatium bicolor

(S. Wats.) Coult. & Rose

Bicolor Biscuitroot

G3Vulnerable (G3G4) Found in 10 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.148701
Element CodePDAPI1B021
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderApiales
FamilyApiaceae
GenusLomatium
Synonyms
Lomatium bicolor var. bicolor
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
This record represents the narrow concept of Lomatium bicolor following FNA (vol. 13, 2024) which is equivalent to L. bicolor var. bicolor. In contrast, FNA (vol. 13, 2024) recognizes L. bicolor (=L. bicolor var. bicolor) and L. leptocapum (=L. bicolor var. leptocarpum) as distinct species.
Conservation Status
Review Date1998-11-10
Change Date1998-02-01
Edition Date1998-11-02
Edition AuthorsFayette, Kim
Rank Reasons
This subspecies is known from Idaho, Utah, Montana, Colorado and Wyoming. There are more than 13 occurrences in Montana and one in Colorado, but precise occurrence information from the rest of states in the range was not available.
Range Extent Comments
Variety bicolor is a regional endemic of northern Utah, southeastern Idaho and southwestern Wyoming (Schlessman 1982), Gunnison County, Colorado (CNHP 1998), and Montana.
Occurrences Comments
There is only one historical (1938) occurrence known from Colorado, this occurrence may actually be Lomatium bicolor var. leptocarpum (CNHP 1998). There are more than 13 occurrences in Montana (MNHP 1998). The number of occurrences in Wyoming, Utah and Idaho is unknown.
Ecology & Habitat
Other Nations (1)
United StatesN3
ProvinceRankNative
IdahoSNRYes
WyomingS3Yes
ColoradoS2Yes
UtahS2Yes
Plant Characteristics
Economic Value (Genus)Yes
Roadless Areas (10)
California (1)
AreaForestAcres
Dobie FlatModoc National Forest15,079
Oregon (3)
AreaForestAcres
Grande RondeUmatilla National Forest12,296
Lookout MountainOchoco National Forest14,115
Mt. EmilyWallowa-Whitman National Forest8,421
Utah (2)
AreaForestAcres
Stump CreekCaribou National Forest355
Upper South ForkWasatch-Cache National Forest16,811
Washington (3)
AreaForestAcres
Asotin CreekUmatilla National Forest16,433
Wenatchee CreekUmatilla National Forest15,315
Willow SpringsUmatilla National Forest10,414
Wyoming (1)
AreaForestAcres
Salt River RangeBridger-Teton National Forest235,661
References (6)
  1. Colorado Natural Heritage Program. 1998. Biological Conservation Datasystem. Colorado State University, Ft. Collins, CO.
  2. Flora of North America Editorial Committee (FNA). 2024. Flora of North America north of Mexico. Vol. 13. Magnoliophyta: Geraniaceae to Apiaceae. Oxford Univ. Press, New York. xxiv + 566 pp.
  3. Idaho Conservation Data Center. 1998. Idaho Department of Fish and Game, Boise, Idaho.
  4. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  5. Montana Natural Heritage Program. 1998. Biological Diversity Datasystem. Helena, Montana, USA.
  6. Schlessman, M.A. 1982. Notes and News. Madrono, 29:118-119. (<i>Lomatium bicolor var. leptocarpum</i>).