Basal leaf blades cordate to oblong or circular in outline, simple and undivided or 3-foliolate, if compound the leaflets undivided, margins crenate, apices rounded to obtuse or occasionally acute. Flowers: petals abaxially yellow, 6-9 mm broad, retuse. Heads of achenes hemispheric to ovoid, 7-9 mm; beak 1.8-2.2 mm. 2 n = 32.

Flowering late winter-spring (Mar-May). Meadows and marshy areas; 0-1500 m; Calif., Oreg.

Ranunculus orthorhynchus var. bloomeri is disjunct between the Coast Ranges of west-central California and south-central Oregon.