Flora of North America species comparison

filiform, sometimes enlarged basally, 0.5-1.5 mm thick.

nearly erect, hispid, base not bulbous.

erect or nearly erect, 10-60 cm, glabrous, each with 3-50 flowers.

persistent, blades reniform or orbiculate, undivided or sometimes innermost 3-parted or -foliate, 1.4-4.2 × 2-5.2 cm, base shallowly to deeply cordate, margins crenulate to crenate-lobulate, apex rounded to rounded-obtuse.

pedicellate;

receptacle pilose;

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

petals 5, 7-10 × 4-8 mm.

pedicels glabrous or nearly so;

receptacle sparsely to very sparsely pilose;

sepals 2.5-4 × 1-2 mm, abaxially glabrous;

petals 5, 1.5-3.5 × 1-2 mm;

nectary scale glabrous.

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.

ovoid, 3-6 × 2.5-5 mm;

achenes 1.4-1.6 × 1-1.5 mm, glabrous;

beak subulate, curved, 0.1-0.2 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.

= 16.