Flora of North America species comparison

scrambling to climbing, 3-4 m. Leaf blade 3-foliolate;

leaflets ovate, largest leaflets usually 3-lobed, 1.5-6 × 1.5-5 cm;

terminal leaflet occasionally 3-cleft, margins usually toothed;

surfaces glabrous or sparsely silky.

climbing, 2-7 m. Leaf blade 3-foliolate;

leaflets ovate to lanceolate, 3.5-9 × 1.5-7.5 cm, margins coarsely toothed to entire;

surfaces abaxially sparsely to densely pilose, adaxially glabrate.

axillary, flowers solitary, rarely 3-flowered cymes.

axillary, 3-many-flowered simple or compound cymes.

unisexual;

pedicel (including peduncle) stout, 3.5-11 cm;

sepals wide-spreading, not recurved, white to cream, ovate or elliptic to obovate or oblanceolate, 10-21 mm, abaxially and adaxially pilose;

stamens 50-100;

filaments glabrous;

staminodes absent or 50-100;

pistils 75-100.

unisexual;

pedicel slender, 1-2 cm;

sepals wide-spreading, not recurved, white to cream, elliptic or nearly oblong to oblanceolate, 6-14 mm, abaxially densely white-hairy, adaxially sparsely white-hairy;

stamens ca. 30-50+;

filaments glabrous;

staminodes absent or fewer than stamens;

pistils 40-70;

beak nearly equaling sepals.

asymmetric-ovate, not broadly orbiculate, 3-4 × 1.5-2 mm, not conspicuously rimmed, glabrous;

beak 3.5-5.5 cm.

ovate, 2.5-3.5 × l.5 mm, conspicously rimmed, sparsely short-hairy;

beak 2.5-5 cm.

= 16.

= 16.