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Astragalus proimanthus
Astragalus proimanthus is a species of flowering plant in the legume family known by the common name precocious milkvetch. It is a narrow endemic, occurring in an area of less than 320 acres near the town of McKinnon in southwestern Sweetwater County, Wyoming. It has four known populations, including one large population of more than 20,000 individuals, and is classified by NatureServe as G1 (critically imperiled) "because of extreme rarity".
Astragalus proimanthus grows in sparsely-vegetated areas among cushion plant/bunchgrass communities, in the dry, thin, rocky clay soils of benches and bluffs at elevations of 6400–7200 feet
Astragalus aboriginum · Rogue River milkvetch · Sharp-leaved Milk Vetch · Sharpkeel milkvetch · Humboldt County milkvetch · Purple milkvetch · Cushenbury milkvetch · Astragalus alopecurus · Alpine milkvetch · Crescent milkvetch · Hermit Milkvetch · Anderson's milkvetch
Text excerpted from the Wikipedia article Astragalus proimanthus by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
