Flora of North America species comparison

never tuberous.

slender, 0.4-0.8 mm thick.

erect or decumbent, sometimes rooting nodally, hispid or strigose, base not bulbous.

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

blades ovate to deltate in outline, 3-foliolate or outer blades merely 3-parted, 2-13.4 × 2.4-16.8 cm, leaflets undivided to lobed or parted, ultimate segments narrowly elliptic or oblanceolate to circular, margins toothed, apex acuminate to rounded.

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 hispid;

sepals spreading or reflexed, 4-10 × 2-5 mm, hispid;

petals 5, yellow, 8-16 × 3-9 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 to short-ovoid, 6-10 × 7-10 mm;

achenes 2.2-5.2 × 2-3.8 mm, glabrous, margin forming narrow rib or broad wing 0.1-1.2 mm wide;

beak persistent, lance-subulate, straight or somewhat curved, 0.8-2.6 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.

= 48.