Flora of North America species comparison

slender or fusiform-thickened basally, glabrous.

erect or ascending, not rooting nodally, glabrous or hirsute.

decumbent, sparsely pilose.

basal leaf blades with base acute;

proximal cauline leaf blades lanceolate, ovate, or elliptic, 1.8-14.1 × 0.7-2.9 cm, base acuminate to rounded, margins entire or serrulate, apex obtuse to acuminate.

bracts lanceolate.

receptacle glabrous;

sepals 5, spreading or reflexed from base, 2-6 × 1-4 mm, glabrous or hirsute;

petals 5-12, 5-14 × 2-8 mm;

nectary scales glabrous.

sessile;

receptacle glabrous or pilose;

sepals 3, spreading, 1-2 × 0.5-1 mm, hirsute;

petals 3, 1-2 × 0.5-0.8 mm.

hemispheric to globose, 3-7 × 4-8 mm;

achenes 1.6-2.8 × 1.2-2 mm, glabrous or rarely hispid;

beak lance-subulate, straight or weakly curved, 0.4-1.2 mm.

hemispheric, 2-2.5 × 3-3.5 mm;

achenes 10-15 per head, 1.3-1.7 × 1-1.3 mm, faces and proximal margin finely papillate, each papilla crowned with hooked bristle, otherwise glabrous;

beak semicircular to deltate, curved, 0.2-0.5 mm.

and lower cauline leaf blades reniform, 3-parted, 0.8-1.7 × 1.2-2 cm, segment base cordate, margins dentate or lobulate, apex rounded-obtuse.