Flora of North America species comparison

decumbent, sparsely pilose.

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, 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.