Flora of North America species comparison

slender, 0.2-0.8 mm thick.

dimorphic, flowering stems erect or ascending, stolons prostrate, rooting nodally, glabrous or sparsely hirsute, not bulbous-based.

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

simple and undivided, blades oblong to cordate or circular, 0.7-3.8 × 0.8-3.2 cm, base rounded to cordate, margins crenate or crenate-serrate, apex rounded.

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 hispid or glabrous;

sepals spreading, 2.5-6 × 1.5-3 mm, glabrous;

petals 5, yellow, 2-7 × 1-3 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.

long-ovoid or cylindric, 6-12 × 4-5(-9) mm;

achenes 1-1.4(-2.2) × 0.8-1.2 mm, glabrous;

beak persistent, conic, straight, 0.1-0.2 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.

roots absent.

= 16.

= 32.