Flora of North America species comparison

never tuberous.

slender, 0.6-1.2 mm thick.

erect or ascending, never rooting nodally, crisped-pilose, base not bulbous.

erect, 5-33 cm, pilose or glabrous, each with 3-7 flowers.

persistent, blades ovate, obovate or orbiculate, rarely reniform, undivided or innermost with 2 clefts or partings near apex, 1-3.7 × 1.1-3.5 cm, base acute to rounded, margins entire, apex rounded.

broadly rhombic to semicircular in outline, 3-parted, 2.8-4.3 × 3-5.5 cm, segments 3-lobed, ultimate segments lanceolate, margins entire or toothed, apex narrowly acute or acuminate.

receptacle glabrous;

sepals reflexed 1 mm above base, 4-6 × 1.5-3 mm, densely pilose;

petals 5, abaxially red, adaxially yellow, 10-12 × 4-6 mm.

pedicels appressed-pubescent;

receptacle pilose or glabrous;

sepals 3-5 × 2-3 mm, abaxially pilose, hairs colorless;

petals 5, 4-9 × 2-5 mm;

nectary scale glabrous.

of achenes hemispheric, 4-7 × 7-10 mm;

achenes 3.4-4.2 × 2.8-3.2 mm, sometimes basally pilose, margin forming narrow rib 0.1-0.2 mm wide;

beak persistent, lance-subulate, straight or somewhat curved distally, 1.6-2.6 mm.

of achenes cylindric, 7-17 × 5-8 mm;

achenes 1.5-2 × 1.3-1.8 mm, canescent or glabrous;

beak subulate, straight or hooked, 0.4-2 mm.