Flora of North America species comparison

slender, 0.2-0.8 mm thick.

never tuberous.

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

erect to decumbent, never rooting nodally, hirsute, pilose, or glabrous, base not bulbous.

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.

ovate to narrowly ovate in outline, 3-parted or -foliolate, 3.3-9.5 ×3.5-9.4 cm, leaflets or segments 1-3x-lobed, ultimate segments ovate or oblong-ovate to lanceolate, margins toothed, apex acute or obtuse.

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.

receptacle glabrous;

sepals reflexed 1-2 mm above base, 3-8 × 2-4 mm, hirsute;

petals 5-17, yellow, 6-12 × 3-6 mm.

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.

hemispheric to globose, 6-9 × 7-10 mm;

achenes 3.4-4.4 × 2.4-3.6 mm, glabrous or rarely hispid, margin forming narrow rib 0.1-0.2 mm wide;

beak persistent, deltate or lance-deltate, curved, 0.2-1.2 mm.

= 32.