Flora of North America species comparison

5-30 cm, from rhizomes, rhizomes horizontal.

5-30(-40) cm, from rhizomes, rhizomes horizontal.

1, simple;

petiole (0.8-)2-8(-12) cm;

leaf blade reniform to ±orbiculate, (1-)1.5-3(-4) × 1.5-4 cm, base somewhat cordate, margins crenate to serrate ±throughout, apex acute to broadly acute, surfaces glabrous or ±villous, or abaxially glabrescent;

segments primarily 3, rhombic;

lateral segments unlobed or 1x-lobed; ultimate lobes 4-10(-15) mm wide.

0-1, ternate;

petiole 5-8 cm;

terminal leaflet sessile to petiolulate, ovate to oblanceolate, (1-)1.5-3(-4) × (0.4-)0.7-1.5(-2) cm, base narrowly cuneate, margins serrate to crenate on distal 1/2-2/3, apex acuminate to narrowly acute, rarely obtuse, surfaces glabrous, rarely puberulous;

lateral leaflets unlobed or occasionally nearly lobed.

1-flowered;

peduncle puberulous;

involucral bracts 2-3, 1-tiered, simple, ±similar to basal leaves, primarily rhombic, 1-3.5 cm, bases distinct, cuneate, margins crenate on distal 1/2, apex acute to narrowly acute, surfaces glabrous or ±villous, or abaxially glabrescent;

segments 3, primarily rhombic;

lateral segments unlobed, 2-10 mm wide.

1-flowered;

peduncle distally puberulous or nearly glabrous throughout;

involucral bracts 3, 1-tiered, ternate, ±similar to basal leaves, bases distinct;

terminal leaflet sessile to petiolulate, ovate to oblanceolate, (1-)1.5-3(-4) × (0.4-)0.7-1.5(-2) cm, bases narrowly cuneate, margins serrate to crenate on distal 1/2-2/3, apex acuminate to narrowly acute, rarely obtuse, surfaces glabrous, rarely puberulous;

lateral leaflets unlobed or occasionally nearly lobed.

sepals (4-)6(-8), yellow (rarely abaxially yellow, tinged blue, and adaxially yellow), elliptic, 8-15 × 4-10 mm, abaxially villous, especially proximally, adaxially glabrous;

stamens 25-55.

sepals 5(-7), white, pink, or sometimes blue-tinged, oblong, rarely narrowly ovate, 3.5-8(-10) × 1.5-3(-3.5) mm, glabrous;

stamens 10-30(-35).

body ovoid to oblong, 3-4 × ca. 1.5 mm, not winged, glabrous;

beak recurved, 4-6 mm, glabrous.

body elliptic, flat, 3-4 × 1-1.5 mm, not winged, white-puberulous;

beak subulate, sometimes slightly curved, ca. 0.5 mm, glabrous.

loosely spheric;

pedicel 3-20 cm.

nearly spheric;

pedicel 1-3(-4) cm in fruit.

=14.

=16.