Ivesia gordonii (Hook.) Torr. & A. Gray var. ursinorum (Jeps.) Ertter & Reveal
[= Ivesia gordonii var. ursinorum]
Annotated by B. Ertter, 2006.

Idaho: Custer County: Pioneer Mountains, Lake Creek; unsurveyed; Growing in stabilized volcanic talus below the saddle between Anderson Canyon and Lake Creek drainage. Elev. 3200 m.
T05N R22E S26
Datum: NAD 27. Uncertainty: 800 meters. Coordinate Source: TRS2LL.
Ivesia gordonii is the dominant species, and vegetative cover is moderate on the S-facing slope. Associates: Draba densifolia, Lesquerella carinata, Eriogonum caespitosum, Allium brandegei, Phlox pulvinata, Eriogonum ovalifolium depressum. Abundance: common. Phenology: Flowers.

S. L. Caicco 399, Jul 15, 1982
ID, Accession: 79880, Barcode: ID049370