Flora of North America species comparison

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

cordate in outline, ternately 1-2x-compound, 1.5-3.8 × 2.1-3.8 cm, leaflets 2-3x-parted, ultimate segments elliptic to linear, margins entire or with occasional teeth, apex obtuse to acuminate.

receptacle hispid;

sepals spreading, 9-15 × 5-9 mm, glabrous;

petals pinkish white, 12-18 × 9-13 mm.

roots absent.

heads globose or depressed-globose, 13-27 × 21-29 mm;

fruit wall veined, inflated, not winged, fruits thus utricles;

utricles 6-12 × 4-6 mm, glabrous;

beak persistent, deltate or subulate from deltate base, 0.2-0.6 mm.