Flora of North America species comparison

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Astragalus subcinereus var. sileranus
Photo is of parent taxon

Siler's milkvetch
Stems

prostrate, 14–60 cm, often conspicuously flexuous.
Flowers

5–9 mm.
Legumes

ellipsoid, turgid, not bladdery-inflated, length usually more than 2 times width, 5–8 mm wide (if shorter, less than 7 mm wide and texture leathery).

Astragalus subcinereus var. sileranus
Phenology Flowering May–Aug.
Habitat Ponderosa pine, aspen, oak, pinyon-juniper, and mixed mountain brush communi­ties.
Elevation 1700–2800 m. (5600–9200 ft.)
Distribution
from FNA
NV; UT
Discussion

Variety sileranus occurs in Lincoln County in Nevada, and Garfield, Iron, Kane, and eastern Washington counties in Utah.

The main overlap in distribution between vars. subcinereus and sileranus occurs in Lincoln County, Nevada, but still, this variety is most closely allied to the disjunct var. basalticus of central Utah.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Astragalus > sect. Scytocarpi > Astragalus subcinereus
Sibling taxa
A. subcinereus var. basalticus, A. subcinereus var. subcinereus
Synonyms A. sileranus, Phaca sileriana
Name authority (M. E. Jones) S. L. Welsh: Great Basin Naturalist 58: 49. (1998)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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