Flora of North America species comparison

always both filiform and tuberous on same stem.

slender, 0.7-1.3 mm thick.

erect or ascending, never rooting nodally, strigose or spreading-strigose, base not bulbous.

erect from short caudices, 6-15 cm, glabrous or sometimes pilose, each with 1-2 flowers.

blades ovate to broadly ovate in outline, 3-5-foliolate, 2.1-4.7 × 1.9-4.5 cm, leaflets undivided or 1x-lobed or -parted, ultimate segments oblanceolate or obovate, margins entire or with few teeth, apex rounded-acute to rounded-obtuse.

persistent, blades narrowly elliptic to lanceolate or oblanceolate, undivided, 1.5-4.5 × 0.5-1.1(-2.8) cm, base acute or long-attenuate, margins entire except for apex, apex truncate or rounded and 3(-5)-toothed.

receptacle hispid or glabrous;

sepals spreading or sometimes reflexed from base, 5-7 × 2-3 mm, hispid or glabrous;

petals 5(-7), yellow, 8-14 × 3-6 mm.

pedicels glabrous or brown-pilose;

receptacle glabrous;

sepals 6-12 × 2.5-8 mm, abaxially densely brown-pilose;

petals 5(-8), 10-19 × 6-17 mm;

nectary scale glabrous.

globose or ovoid, 5-9 × 5-8 mm;

achenes 2-2.8 × 1.8-2.2 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide;

beak persistent, filiform, straight, 1.2-2.8 mm.

ovoid or cylindric, 5-10 × 4-5.5 mm;

achenes 1.5-1.7 × 1.2-1.3 mm, glabrous;

beak slender, straight or recurved, 0.5-1.5(-2.2) mm.

= 32.