Erythranthe arvensis (Greene) G.L. Nesom
Annotated by Heather Zimba, 2020. Sources: Flora of PNW Revised.

Idaho: Cassia County: 9.7 air km NW from Paradise Creek. Walked north downhill until arrived at dry section of Jim Sage Creek. From there followed creek bed west (uphill) about 180 m to a large juniper skeleton (first one). Creek had flowing water there. Elev. 1834 m.
42.163974° N, 113.451392° W
Datum: WGS 84. Uncertainty: 3 meters.
Site revisited. Bromus tectorum abundant. Open sagebrush steppe in rolling E-facing foothills. Jim Sage creek passes through site with water still flowing. Site is mix of open sagebrush and burned juniper skeletons. S-facing slope above creek dominated by grasses (Pseudoroegneria and Poa) with lots of exposed basalt flows. N-facing slope mix of grasses and shrubs (Artemisia and Symphoricarpos). Abundant forbs: herbaceous asters, lupine, Collinsia. Tick city. Yellow flowers, upper calyx love greater than lower ones.

D. Stone 19-253, Jun 26, 2019
ID