Physaria macrantha Blankinship

Trichomes somewhat spreading (on herbage), loose and spreading (on fruits). Basal leaves: blade margins repand to dentate. Fruits moderately inflated, (firm); ovules 8 per ovary. 2n = 16, 24, 56?

Flowering May-Aug. Gravel bars, steep shale outcrops, rocky flats, gravelly prairies, talus slopes, dry hillsides, road cuts, mountains and foothills; 500-3100 m; Alta., B.C.; Idaho, Mont., Wash., Wyo.