Rorippa obtusa (Nutt.) Britt.
[= Rorippa teres]

Idaho: Custer County: Lost River Range, Challis National Forest, ridge between two forks of upper Grouse Cr, ca 1.5 miles W of Grouse Cr Mt, ca 19 miles N of Dickey. Elev. 9900 ft.
T12N R21E S23 NE
Datum: NAD 27. Uncertainty: 800 meters. Coordinate Source: TRS2LL.
Moist meadow in depression that has standing water early in season creating frost hummocks and frost boils. Deep clay soil with mantle of coarse gravel at surface. Associated with: Solidago multiradiata, Carex elynoides, Trisetum spicatum, Festuca ovina, Potentilla diversifolia, Senecio weneriaefolius, Sibbaldia procumbens, Poa alpina. Corolla yellow, plants common. Phenology: Flowers.

R. K. Moseley 536, Aug 14, 1984
ID, Accession: 82258, Barcode: ID072289