Flora of North America species comparison

slender, 0.1-0.6 mm thick.

decumbent, sparsely pilose.

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.

sessile;

receptacle glabrous or pilose;

sepals 3, spreading, 1-2 × 0.5-1 mm, hirsute;

petals 3, 1-2 × 0.5-0.8 mm.

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, 2-2.5 × 3-3.5 mm;

achenes 10-15 per head, 1.3-1.7 × 1-1.3 mm, faces and proximal margin finely papillate, each papilla crowned with hooked bristle, otherwise glabrous;

beak semicircular to deltate, curved, 0.2-0.5 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.

and lower cauline leaf blades reniform, 3-parted, 0.8-1.7 × 1.2-2 cm, segment base cordate, margins dentate or lobulate, apex rounded-obtuse.

= 16.