Flora of North America species comparison

erect or ascending, not rooting nodally, villous, not bulbous-based.

erect, pilose.

blades broadly spatulate in outline, 1-2x-dissected, 0.9-3.8 × 0.5-1.5 cm, segments linear, margins entire, apex obtuse to acuminate.

receptacle glabrous;

sepals spreading, 3-6 × 1-2 mm, villous;

petals yellow, 3-5 × 1-3 mm.

pedicellate;

receptacle glabrous;

sepals 5, spreading, 1.1-1.8 × 0.5-1 mm, pilose;

petals 0-5, 1.3-2 × 0.3-0.7 mm.

cylindric, 9-16(-27) × 8-10 mm;

achenes 1.6-2 × 1.8-2 mm, tomentose;

beak persistent, lanceolate, 3.5-4.5 mm.

discoid, 4-6 × 3 mm;

achenes 4-9 per head, 1.7-2.3 × 1.7-2 mm, faces and margin papillose, each papilla crowned with hooked bristle, otherwise glabrous;

beak lanceolate, hooked distally, 0.5-0.7 mm.

roots absent.

and lower cauline leaf blades cordate-reniform, deeply 3-parted, 0.6-2.3 × 1.2-3.5 cm, segments undivided or 2-4-lobed, base shallowly cordate, margins entire or 2-4-dentate, apex of ultimate segments acute.