Flora of North America species comparison

cylindric, 2-3 mm thick.

never tuberous.

prostrate or ascending, 5-20 cm, glabrous, each with 1-6 flowers.

erect to reclining, not rooting nodally, hirsute or sometimes pilose or glabrous, base not bulbous.

persistent, blades rhombic to deltate or reniform in outline, 3-4x-dissected, 1.1-3.4 × 2-3.1 cm, segments linear, base obtuse, margins crenate, apices of segments narrowly rounded.

broadly ovate to semicircular or reniform in outline, 3-parted or -foliolate, 1.5-5.3 × 2.2-8 cm, segments usually again 1(-2)×-lobed, ultimate segments oblong or elliptic to lanceolate or oblanceolate, margins dentate (sometimes dentate-lobulate or entire), apex acute to rounded-obtuse.

pedicels glabrous;

receptacle short-pubescent;

sepals 4-8 × 2-5 mm, abaxially glabrous or nearly so;

petals 5, 6-15 × 4-10 mm;

nectary scale glabrous.

receptacle glabrous;

sepals reflexed 2-3 mm above base, 4-7(-9) × 2-4 mm, hirsute;

petals 5-14, yellow, 5-13 × 1.5-8 mm.

depressed-globose, 4-6 × 5-8 mm;

achenes 1.8-2.2 × 1.2-1.8 mm, finely pubescent;

beak subulate, straight, 0.8-1.5 mm.

hemispheric, 3-7 × 5-9 mm;

achenes 2.6-3.6(-4.8) × 1.8-3(-3.2) mm, glabrous, rarely hispid, margin forming narrow rib 0.1-0.2 mm wide;

beak persistent, lanceolate to lance-subulate, straight or curved, 0.4-2.2 mm.