Flora of North America species comparison

slender, 0.4-0.8 mm thick.

erect from short caudices, not rooting nodally, glabrous, not bulbous-based.

erect from short caudices, 4-22 cm, glabrous or sparsely pilose, each with 1 flower.

blades circular to reniform in outline, 3-5-parted, 0.8-3.8 × 1.7-6.9 cm, segments again lobed, ultimate segments elliptic or oblong, margins crenate, apex rounded;

cauline leaf 0-1, scalelike.

persistent or deciduous, blades reniform, 3-parted, 0.6-2 × 1.3-3 cm, at least lateral segments again lobed or margins toothed, base truncate or cordate, apices of segments rounded-apiculate.

receptacle glabrous;

sepals spreading, yellow, 7-11 × 4-7 mm, glabrous;

petals 11-15, yellow, 8-12 × 3-5 mm.

pedicels glabrous or brown-pilose;

receptacle glabrous;

sepals 6-8 × 3-5 mm, abaxially densely brown-hispid;

petals 5(-6), 8-11 × 7-12 mm;

nectary scale glabrous.

hemispheric or spheric, 7-8 × 9-10 mm;

achenes 2.4-4.6 × 1.2-2.2 mm, glabrous;

beak persistent, filiform, hooked distally, 1-1.8 mm.

cylindric or ovoid-cylindric, 7-14 × 5-6 mm;

achenes 1.5-2.2 × 1.2-1.6 mm, glabrous;

beak slender, straight, 1-2 mm.

roots absent.

= 16.

= 48.