Astragalus platytropis A. Gray
Annotated by Hannah R. Alverson, 30 Nov 2018.

Idaho: Custer County: BLM land, Malm Gulch, Salmon River Canyon region between Clayton and Salmon. West side gulch of main drainage, ca 2.6 miles ESE of Hwy 75 along river. This short side canyon is just one N of the side canyon in which petrified Sequoia sempervirens found. Elev. 6200 ft.
T12N R19E Sec. 28 SW 1/4
Datum: WGS 84. Uncertainty: 569 meters. Coordinate Source: Calc. from TRS.
N aspect, slope ca 80%, soil deep, gravelly, derived from tuff of Challis Volcanics. Scattered on this slope with Artemisia tridentata wyo., Elytrigia spicata, Castilleja angustifolia. Plants common. Plants in fruit only.

Douglass Henderson 6594, Jun 21, 1983
With A. Cholewa
SBLM, Accession: 000456