Lomatium ambiguum (Nutt.) J.M. Coult. & Rose × Lomatium triternatum (Pursh) J.M. Coult. & Rose

Washington: Asotin County: On the Rattlesnake Grade, just N of the southernmost hairpin turn.
T7N R44E S25 SW SE
Datum: NAD 27. Uncertainty: 800 meters. Coordinate Source: TRS2LL.
Dry, rocky soil. Assoc.: Pseudoroegneria spicata, Astragalus cusickii. Hybrids as common as both parents. Phenology: Flowers.

Curtis R. Bjork 4151, May 5, 1999
With Matt Finer
ID, Accession: 116084, Barcode: ID129417