[Ranunculus eisenii Kellogg, moreRanunculus howellii Greene in Howell, Ranunculus occidentalis subsp. insularis Hultén, Ranunculus occidentalis var. dissectus L.F.Hend., Ranunculus occidentalis var. eisenii (Kellogg) A. Gray, Ranunculus occidentalis var. howellii (Greene) Greene, Ranunculus occidentalis var. rattanii (Howell) Gray, Ranunculus occidentalis var. ultramontanus Greene]
Stems erect to spreading, 1-3 mm thick, hirsute or sometimes glabrous. Basal leaf blades 3-parted or sometimes 3-foliolate, ultimate segments lanceolate or oblanceolate, margins entire or sparsely dentate. Flowers: sepals 5, 4-6 mm; petals 5-6, 6-10 × 3-6 mm. Achenes 2.6-3.6 × 2-2.8 mm, glabrous; beak lance-subulate, straight, 1.2-2.2 mm. Flowering spring-summer (May-Jul). Wet to dry meadows; 1000-1800 m; Calif., Oreg. Ranunculus occidentalis var. dissectus is found in the Great Basin, Klamath region, and southern Cascade Mountains. As noted below, it is very similar to var. howellii .