Flora of North America species comparison

not thickened basally, glabrous.

slender, 0.1-0.6 mm thick.

erect or ascending, rooting at most proximal nodes, glabrous.

erect or ascending from short caudices, 0.6-3.5 cm (sometimes longer in fruit), each with 1-2 flowers.

persistent, blades reniform to transversely elliptic or semicircular, 3-parted or -divided, 0.45-0.9 × 0.6-1.3 cm, at least lateral segments again lobed, base truncate or nearly cordate, margins entire, apex rounded to obtuse.

ovate or lanceolate, 1.2-4.2 × 0.5-1.2 cm, base acute to truncate, margins entire or denticulate, apex acuminate to rounded.

bracts linear to lanceolate or oblanceolate.

receptacle glabrous;

sepals 4-5, spreading or reflexed from base, 1.5-3 × 1-1.5 mm, glabrous or sparsely hirsute;

petals 1-3, 1.5-2 × 0.5-1 mm;

nectary scales glabrous.

pedicels glabrous or pubescent;

receptacle glabrous;

sepals 2-4 × 1.2-1.6 mm, abaxially sparsely hairy, hairs colorless;

petals 5, 1.2-3.5 × 1.1-2.8 mm;

nectary scale glabrous.

hemispheric to cylindric, 2-8 × 2-3 mm;

achenes 1-1.2 × 0.6-0.8 mm, ± tuberculate, glabrous;

beak absent or nearly so, to 0.1 mm.

nearly globose to cylindric, 2.5-7 × 2.5-5 mm;

achenes 1-1.2 × 0.8-1.1 mm, glabrous;

beak subulate, straight or curved, 0.3-0.7 mm.

= 16.