Flora of North America species comparison

erect to decumbent, not rooting nodally, glabrous, not bulbous-based, spheric or ellipsoid bulbils sometimes formed in leaf axils.

prostrate, glabrous, rooting nodally.

basal leaves absent, cauline leaf blades reniform to broadly flabellate, deeply 3-lobed or 3-parted, 0.3-1.2 × 0.5-2.1 cm, base obtuse to cordate, lobes undivided or lateral lobes cleft, terminal segment entire or distally crenulate, apex rounded.

simple and undivided, blades cordate to deltate or semicircular, 1.8-3.7 × 2-4 cm, base cordate, margins entire or crenate, apex rounded or obtuse.

receptacle glabrous;

sepals spreading, saccate at extreme base, 4-9 × 3-6 mm, glabrous;

petals yellow, 10-15 × 3-7 mm.

receptacle glabrous;

sepals 3-4, spreading or reflexed from base, 2-4 × 1-3 mm, glabrous;

petals 3-4, 2-4 × 1-3 mm;

nectary on petal surface, scale poorly developed and forming crescent-shaped ridge surrounding but not covering nectary;

style 0.1-0.2 mm.

hemispheric, 4-5 × 6-8 mm;

achenes 2.6-2.8 × 1.8-2 mm, pubescent;

beak absent.

globose or short-ovoid, 3-5 × 2-5 mm;

achenes 1-1.4 × 0.8-1.2 mm, glabrous;

beak linear, curved, 0.1-0.4 mm.

roots present.

= 32.