Astragalus lentiginosus Douglas var. platyphyllidius (Rydb.) M. Peck
Annotated by Ben Legler, 24 Feb 2020. Sources: Flora of PNW Revised, PNW Consortium.

Idaho: Owyhee County: Air distance 25.63 km ESE from Riddle 1) Head southeast on Roland Rd. for 41.2km. 2) Turn right/northwest onto no-named, 2-track road, and travel for 3.5km to reach pasture entrance. 3) Continue straight on no-named road into pasture for another 3.2km (heading NW). 4) Park on the left/north side of the road. Elev. 1661 m.
42.11547° N, 115.8142° W; UTM Zone 11, 598028E, 4663277N
Datum: WGS 84.
Rolling hills with canyon to the west and mountains to the east; some large rocks present, over story is Wyoming sage, green and rubber rabbitbrush, and hop sage, dominate grasses are bluebunch wheatgrass, Sandberg bluegrass, Idaho fescue, and squirreltail, cheat grass present, but scattered, soil is rocky, silty, dry. Spreading plant with light green and red stems; no hair; compound, odd pinnate leaves; leaves are smooth, slightly leathery and green; white flower, abundant. Phenology: Flowers.

Nachman 19-18, May 3, 2018
ID