Flora of North America species comparison

thickened basally, glabrous.

tuberous, 2.5-5 mm thick.

erect or ascending, never rooting nodally, glabrous.

erect, 2.5-7.5 cm, glabrous, each with 1-4 flowers.

basal leaf blades with base obtuse to cordate;

proximal cauline leaf blades semicircular to cordate or ovate, 1.2-5.1 × 1.5-2.9 cm, base cordate to broadly obtuse, margins entire or crenulate, apex broadly acute to rounded.

persistent, blades obdeltate in outline, 1-2.8 cm, segments 0.2-0.6 cm wide, deeply divided into 3 oblanceolate segments with lateral segments often again lobed or parted, base long-attenuate, margins entire, apex rounded.

bracts narrowly elliptic to ovate or lanceolate.

receptacle glabrous or hispidulous;

sepals 4-5, spreading or reflexed from base, 3-5 × 2-4 mm, glabrous;

petals 5-6, 4-9 × 2-5 mm;

nectary scales glabrous.

pedicels glabrous;

receptacle glabrous or sparsely pilose;

sepals 3-7 × 1.5-3 mm, abaxially glabrous;

petals 5, 6-12 × 2-5 mm;

nectary scale glabrous.

hemispheric, 3 × 4-5 mm;

achenes 1.6-1.8 × 1.2 mm, glabrous;

beak lance-subulate, straight, 0.2-1 mm.

globose to cylindric, 3.5-8 × 3-7 mm;

achenes 1.1-1.4 × 0.8-1.1 mm, finely pubescent;

beak subulate, straight, 0.2-0.8 mm.