Aphanes occidentalis (Nutt.) Rydb.
Annotated by Ben Legler, 22 May 2021.

Idaho: Clearwater County: Aspen group campsite at Freeman Creek Campground on west side of Dworshak Reservoir 11 air km NNW of Orofino. Elev. 490 m.
46.57425° N, 116.280424° W
Datum: WGS 84. Uncertainty: 4 meters. Coordinate Source: GPS.
Mesic, compacted, gravelly soil of parking areas and lawn edges, partly shaded by Pseudotsuga menziesii, with low cover of Cerastium fontanum ssp. vulgare, Cerastum pumilum, Aphanes australis, Cruciata pedemontana, and Veronica arvensis. Hypanthium and calyx 1.3-1.6 mm long; pedicels to ca 1.5 mm long; stipule lobes longer than the fused basal portion; leaves 3-6 mm wide, with 3-6 main lobes, these often again lobed; leaf and stem hairs less than 1 mm long; plants very abundant, forming large patches here and elsewhere throughout campground and scattered on exposed reservoir shorelines. Phenology: Flowers and Fruits.

Ben Legler 16468, May 22, 2021
ID, Accession: 188959, Barcode: ID194515