Flora of North America species comparison

nearly erect, hispid, base not bulbous.

prostrate, buried, rooting nodally, glabrous, not bulbous-based.

blades reniform, deeply 3-parted, 1.1-2.6 × 1.6-4.3 cm, segments undivided or 1x cleft, margins crenate, apex rounded.

pedicellate;

receptacle pilose;

sepals 5, reflexed, 3-8 × 1.5-3 mm, pilose;

petals 5, 7-10 × 4-8 mm.

receptacle glabrous;

sepals spreading or reflexed from base, 4-7 × 2-5 mm, glabrous;

petals yellow, 5-6 × 2-3 mm.

globose or ovoid, 5-8 × 6-7 mm;

achenes 15-35 per head, 2-3 × 2-3 mm, faces sparsely papillate or sometimes smooth, glabrous, margin smooth;

beak oblong to deltate, curved, 0.4-0.7 mm.

hemispheric, 5-7 × 8-10 mm;

achenes 3.8-4.2 × 2-2.2 mm, glabrous;

beak persistent, lanceolate, curved, tip hooked, 1.6-2.4 mm.

and lower cauline leaf blades ovate to cordate, 3-foliolate, 2-6 × 2-6 cm, leaflets again parted, leaflet base truncate to acute, margins crenate-dentate to crenate-lobulate, apex rounded to obtuse.

roots absent.

= 16.