Flora of North America species comparison

never tuberous.

slender, 0.2-0.8 mm thick.

erect, never rooting nodally, strigose or hirsute, base bulbous and cormlike.

erect or ascending, 5-19 cm, sparsely pilose, each with 1-4 flowers.

blades ovate to cordate in outline, 3-foliolate, rarely merely deeply divided, 2–5.3 × 2.4–5.4 cm, leaflets 1–2x-lobed, ultimate segments oblong to obovate, margins toothed, apex rounded in outline.

persistent, blades reniform or semicircular, undivided or some 3-parted, 1.4-2.1 × 1.7-2.8 cm, base cordate or truncate, margins crenate with more than 5 crenae, apex rounded.

receptacle pubescent;

sepals reflexed 2–3 mm above base, 6–9 × 2–4 mm, pilose;

petals 5, yellow, 9–13 × 8–11 mm.

pedicels pilose, sometimes sparsely so;

receptacle hispid;

sepals 4-6 × 2-3 mm, abaxially pilose, hairs colorless;

petals 5, 4-5 × 2-4 mm;

nectary scale glabrous.

ovoid, 6–9 × 5–7 mm;

achenes 2.2–3.2 × 2.2–2.8 mm, glabrous, margin forming narrow rib 0.1–0.2 mm wide;

beak persistent, lanceolate to deltate, 0.2–0.8 mm, slender tip hooked when present.

ovoid to cylindric, 4-7 × 4-6 mm;

achenes 1.6-1.8 × 1.2-1.4 mm, glabrous;

beak lance-subulate, curved, 0.4-0.6 mm.

= 32.