Ranunculus occidentalis Nuttall var. turneri (Greene) L. D. Benson

Stems erect, never rooting nodally, hirsute, base not bulbous. Roots never tuberous. Basal leaf blades cordate to reniform in outline, 3-parted, 1.3-3 × 1.8-3.8 cm, segments cleft, ultimate segments elliptic to lanceolate, margins toothed, apex acute. Flowers: receptacle glabrous; sepals spreading, 7-9 × 2-4 mm, hirsute; petals 5, yellow, 10-15 × 8-11 mm. Heads of achenes nearly globose, 7-10 mm wide; achenes 2.4 × 2.6-2.7 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide; beak persistent, lanceolate, strongly hooked or curved, 1.6-2 mm.

Flowering summer (Aug). Damp meadows; of conservation concern; 0 m; N.W.T., Yukon; Alaska; Asia.

Ranunculus turneri was considered an arctic race of R . acris by E. Hultén (1971). It occurs from the Mackenzie Delta to northeastern Alaska.