Lomatium laevigatum (Nutt.) J.M. Coult. & Rose
Annotated by C. E. Hinchliff.

Oregon: Wasco County: [locality and coordinates withheld; status in Oregon: S3 (Rare; OBIC)],
Large, dramatic basalt cliffs overlooking the Columbia River. Grassland occurring in rich to sandy soils on flat places and in gulleys, and mixed scrub comminites dominating near the bases of the cliffs. Locally abundant but regionally rare perennial herbs from multiply branched subterranean caudex surmounting a deep, protected taproot. Foliage glaucous, glabrous, densely tufted. Numerous inflorescences arising from multiple stems on a single plant, Flowers bright yellow. Silica gel-dried material is available upon request. Phenology: Flowers.

C. E. Hinchliff 1261, Apr 5, 2011
SRP, Accession: 31991