Pacific Buttercup

Ranunculus pacificus is endemic to the Alaska panhandle.

Stems erect or reclining, never rooting nodally, hispid or glabrous, base not bulbous. Roots never tuberous. Basal leaf blades broadly triangular to cordate in outline, 3-foliolate, 6-13 × 8-16 cm, leaflets lobed, margins toothed, ultimate segments elliptic to lance-elliptic or oblong, margins toothed, apex acute or obtuse. Flowers: receptacle hispid; sepals reflexed 1-2 mm above base, 6-9 × 3-4 mm, sparsely hispid; petals 5, abaxially yellow or purplish, adaxially yellow, 9-11 × 6-8 mm. Heads of achenes ovoid to globose, 9-11 × 8-11 mm; achenes 3.2-3.8 × 2-3 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate or subulate from triangular base, straight or tip weakly hooked, 1-1.8 mm.

Alaska.

Flowering summer (Jul).

Along streams and in meadows; 0m.

Ranunculus septentrionalis subsp. pacificus Hultén, Acta Univ. Lund, n.s. 40: 769. 1944