Asclepias cryptoceras S. Watson ssp. davisii (Woodson) Woodson
[= Asclepias cryptoceras]
Annotated by D. Mansfield, Mar 2019.

Idaho: Owyhee County: 14.3 air-km SSE of Bruneau, near the mouth of the Bruneau River canyon. From Bruneau, take Hot Springs Rd. SE along the Bruneau River; turn right on Sugar Valley Rd./Hot Creek Rd.; take second left, at ''Bruneau River'' sign; 3 mi from this turn, after descending into the canyon, turn left onto unnamed gravel road; site approx. 1.5-2 mi along this road. Elev. 2802 ft.
42.76632° N, 115.73399° W
Uncertainty: 3 meters. Coordinate Source: GPS.
Shallow slope, dry ashy clay with small scattered basalt boulders; with Ericameria nauseosa, Bromus tectorum, Tetradymia canescens, Salvia dorrii, Atriplex canescens, Sisymbrium altissimum, and scattered Astragalus sp. Phenology: Fruits.

A. C. DiNicola 2012-28, Jul 13, 2012
With Don Mansfield, Brittni Brown, Brendan Eckert, and Betsaida Chavez-Garcia
CIC, Accession: 42917