Flora of North America species comparison

nearly erect, hispid, base not bulbous.

glabrous.

laminate and filiform-dissected; laminate leaf blades reniform in outline, deeply 3-parted, 0.5-0.8 × 0.9-1.5 cm, segments elliptic or obovate, margins sometimes notched;

filiform-dissected leaves sometimes few and inconspicuous, stipules gradually tapering upward, connate for whole length, mostly petiolate.

pedicellate;

receptacle pilose;

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

petals 5, 7-10 × 4-8 mm.

receptacle glabrous;

sepals spreading, 2-3 × 1-1.5 mm, glabrous;

petals 5, 4-6 × 2-5 mm;

style 1-1.5 mm.

recurved.

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, 3 × 4-5 mm;

achenes 2-2.4 × 1.4-1.8 mm, glabrous;

beak deciduous, sometimes leaving stub to 0.2 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.