Flora of North America species comparison

never tuberous.

never tuberous.

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

erect from short caudex or rhizome, never rooting nodally, hispid, strigose, or glabrous, base not bulbous.

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.

pentagonal in outline, deeply 3-5-parted, 1.8-5.2 × 2.7-9.8 cm, segments 1-2x-lobed or -parted, ultimate segments narrowly elliptic or oblong to lanceolate, margins toothed or lobulate, apex acute to rounded.

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.

receptacle glabrous;

sepals spreading, 4-6(-9) × 2-5 mm, hispid;

petals 5, yellow, 8-11(-17) × 7-13 mm.

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 globose, 5-7(-10) mm wide;

achenes 2-3 × 1.8-2.4 mm, glabrous, margin forming narrow rib 0.1-0.2 mm wide;

beak persistent, deltate, usually with tip short or long, straight or curved, subulate, 0.2-1 mm.

= 14.