Lupinus argenteus Pursh var. argentatus (Rydb.) Barneby
[= Lupinus argenteus ssp. spathulatus]
Annotated by D. Giblin, 23 Sep 2022. Sources: Flora PNW, 2nd.

Washington: Okanogan County: Okanogan-Wenatchee National Forest, Clark Peak. From center of summit area to north ridge, south to rock outcropping and west and east slopes above treeline. Elev. 2391 m.
48.64967° N, 119.92755° W
Datum: WGS 84. Uncertainty: 600 meters. Coordinate Source: GPS.
Bouldery meadows, talus slopes, and north-facing rocky ridgeline; Eremogone capillaris, Antennaria lanata, Penstemon procerus, and Carex spp. common. Only found on east-facing slope; petals blue; foliage pubescent. Phenology: Flowers.

Brielle Cañares 22-64, Aug 18, 2022
With David Giblin, Phoebe Smurthwaite
WTU, Accession: 456239, Barcode: WTU-V-105785