Flora of North America species comparison

slender, 0.8-1.8 mm thick.

fleshy and somewhat tuberous.

erect, 5-22 cm, pilose or occasionally glabrous, each with 3-12 flowers.

erect or decumbent, not rooting nodally, hirsute to nearly glabrous, base not bulbous.

persistent, blades ovate to rhombic, undivided or rarely innermost 3-parted, 1.1-5.3 × 0.9-3.6 cm, base obtuse, margins crenate with 5 crenae, apex rounded.

blades ovate to deltate in outline, 3(-5)-foliolate, 2.5-14.9 × 2.3-19.9 cm, leaflets 1-2x-lobed or -parted, ultimate segments narrowly oblong to elliptic or lanceolate, margins toothed, apex narrowly acute to rounded-acute.

pedicels pilose;

receptacle pilose;

sepals 4-6 × 1.5-3 mm, abaxially pilose, hairs colorless;

petals 5, 6-8 × 2-4 mm;

nectary scale glabrous.

receptacle hispid;

sepals reflexed 1-2 mm above base, 5-10 × 3-5 mm, hispid;

petals 11-16, yellow, 8-21 × 2-5 mm.

depressed-globose, 4-6 × 5-7 mm;

achenes 1.8-2.2 × 1.2-1.8 mm, glabrous;

beak slender, curved, 0.2-0.3 mm.

globose to ovoid, 6-13 × 7-9 mm;

achenes 2.4-3.4 × 2-2.4 mm, glabrous, margin forming rib or narrow wing 0.1-0.4 mm wide;

beak filiform from deltate base, straight, 1.8-2.5 mm, filiform tip often deciduous, leaving 1-1.2 mm deltate beak.

= 16.