Roadless Areas
Home/Species/ Bicknell's Milkvetch

Astragalus consobrinus

(Barneby) Welsh

Bicknell's Milkvetch

G2Imperiled (G2G3) Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.159606
Element CodePDFAB0FA70
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusAstragalus
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.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2018-11-21
Change Date1999-01-21
Edition Date2018-11-20
Edition AuthorsOliver, L. and R. Fitts (2018)
Threat ImpactUnknown
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences21 - 300
Rank Reasons
Endemic to southcentral Utah counties and is in need of inventory and research to better determine range extent and numbers of occurrences. Additionally, threats are unknown but this doesn't mean they don't exist. This species is known to occur on Federal lands and should be protected there until there is a better understanding of its rarity.
Range Extent Comments
The extent of occurrence was calculated to be approximately 1,800 sq. km. based on SEINet specimen data (2018). This species is endemic to Utah and known only from the central to south-central part of the state. There are occurrences in the following counties: Emery, Garfield, Plute, Sevier, and Wayne (UT NPS 2018).
Occurrences Comments
Not much is known about this species, however, botanist R. Fitts (pers. comm.) estimates that between 21-300 occurrences is possible.
Threat Impact Comments
As of the 2018, threats were unknown for this species. More research is needed.
Ecology & Habitat

Habitat

Sagebrush-grassland and pinyon-juniper communities on varied sandy, gravelly, or debris-strewn substrates at 1825 to 2600 m elevation.
Terrestrial Habitats
Forest/WoodlandWoodland - ConiferShrubland/chaparral
Other Nations (1)
United StatesN2
ProvinceRankNative
UtahS2Yes
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)Yes
Roadless Areas (3)
Utah (3)
AreaForestAcres
Lookout PeakFishlake National Forest9,195
Mcdonald BasinFishlake National Forest1,585
Muddy Creek - Nelson Mt.Manti-Lasal National Forest59,034
References (7)
  1. Albee, B.J., L.M. Shultz, and S. Goodrich. 1988. Atlas of the vascular plants of Utah. Utah Museum Natural History Occasional Publication 7, Salt Lake City, Utah. 670 pp.
  2. Barneby, R.C. 1964. Atlas of North American Astragalus. 2 Vols. New York Botanical Garden, Bronx, New York. 1188 pp.
  3. Barneby, R.C. 1989. Fabales. In A. Cronquist, A.H. Holmgren, N.H. Holmgren, J.L. Reveal, and P.K. Holmgren (eds.). Intermountain flora: Vascular plants of the Intermountain West, U.S.A. Vol. 3, Part B. New York Botanical Garden, Bronx. 279 pp.
  4. Fitts, Robert. Botanist. Utah Natural Heritage Program, Salt Lake City, Utah.
  5. 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.
  6. Utah Rare Plant Guide, 2018. UNPS Rare Plant Committee List. 2016-2018 Utah Rare Plant Master List. Accessed on November 20, 2018 at: https://www.utahrareplants.org/rpg_species.html
  7. Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins (eds.) 1993. A Utah flora. 2nd edition. Brigham Young Univ., Provo, Utah. 986 pp.