Flora of North America species comparison

nearly erect, hispid, base not bulbous.

erect from short caudices, not rooting nodally, glabrous, not bulbous-based.

basal leaf blades ovate to semicircular in outline, ternately or pinnately 2x-compound, 2.4-8.2 × 2-8.5 cm, leaflets parted and again lobed, ultimate segments elliptic to linear, margins entire (or occasionally a lobe reduced to tooth), apex acuminate to 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, 3-6 × 1-3 mm, glabrous;

petals (0-)5-6, yellow, 3-8 × 1-3 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 to globose, 4-5 × 6-7 mm;

achenes 2.2-3.6 × 1.2-1.8 mm, glabrous;

beak filiform, strongly reflexed from base, 0.8-1.5 mm, brittle, often broken.

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.

= 32.