Saxifraga nidifica Greene × Saxifraga occidentalis Wats. ?
Annotated by Patrick Elvander, 2 Feb 1979.

Idaho: Nez Perce County: Canyon of the Clearwater River; 4 miles southwest of Myrtle.
46.455976° N, 116.784484° W,
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: GeoLocate.
Mois rocky cliff. Phenology: Flowers.

William H. Baker 6600, May 13, 1950
WTU, Accession: 156443