Flora of North America species comparison

slender, 0.8-1.4 mm thick.

erect from large caudices, 9-25 cm, glabrous, each with 1-3 flowers.

erect, pilose.

persistent, blades circular to reniform in outline, 2-3x-dissected into linear segments, 0.9-2.5 × 1.1-2.8 cm, base obtuse, margins entire, apices of segments narrowly rounded to acute.

pedicels glabrous;

receptacle glabrous;

sepals 4-11 × 3-7 mm, abaxially sparsely pilose, hairs colorless;

petals 5-10, 8-15 × 8-19 mm;

nectary scale glabrous.

pedicellate;

receptacle glabrous;

sepals 5, spreading, 1.1-1.8 × 0.5-1 mm, pilose;

petals 0-5, 1.3-2 × 0.3-0.7 mm.

ovoid, 6-12 × 5-9 mm;

achenes 1.8-2.4 × 1-1.4 mm, glabrous or nearly so;

beak subulate, straight, 1.2-1.7 mm.

discoid, 4-6 × 3 mm;

achenes 4-9 per head, 1.7-2.3 × 1.7-2 mm, faces and margin papillose, each papilla crowned with hooked bristle, otherwise glabrous;

beak lanceolate, hooked distally, 0.5-0.7 mm.

n = 16.

and lower cauline leaf blades cordate-reniform, deeply 3-parted, 0.6-2.3 × 1.2-3.5 cm, segments undivided or 2-4-lobed, base shallowly cordate, margins entire or 2-4-dentate, apex of ultimate segments acute.