Flora of North America species comparison

cylindric, 2-3 mm thick.

fleshy and somewhat tuberous.

prostrate or ascending, 5-20 cm, glabrous, each with 1-6 flowers.

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

persistent, blades rhombic to deltate or reniform in outline, 3-4x-dissected, 1.1-3.4 × 2-3.1 cm, segments linear, base obtuse, margins crenate, apices of segments narrowly rounded.

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 glabrous;

receptacle short-pubescent;

sepals 4-8 × 2-5 mm, abaxially glabrous or nearly so;

petals 5, 6-15 × 4-10 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 × 5-8 mm;

achenes 1.8-2.2 × 1.2-1.8 mm, finely pubescent;

beak subulate, straight, 0.8-1.5 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.