Flora of North America species comparison

cylindric, 1-3 mm thick.

prostrate or ascending, 4-15 cm, glabrous, each with 1-4 flowers.

erect, pilose.

persistent, blades reniform or obovate to very narrowly elliptic, 0.7-5.2 × 1-2 cm, base truncate, obtuse or attenuate, margins entire or with 3 broad, apical crenae, apex rounded to acute.

pedicels glabrous or nearly so;

receptacle glabrous;

sepals 5-8 × 3-7 mm, abaxially glabrous or sparsely pilose, hairs colorless;

petals 5-10, 8-13 × 5-12 mm;

nectary scale glabrous or ciliate.

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.

globose, 7-12(-20) × 6-11(-20) mm;

achenes 1.4-2.2 × 1.1-1.8 mm, usually finely pubescent;

beak subulate or lance-subulate, straight or curved, 0.4-1 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.

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.