Flora of North America species comparison

climbing with tendril-like petioles and leaf rachises, 3-6 m.

viny, to 5 m, glabrous.

blade pinnately 3- or 5-foliolate;

leaflets ovate or broadly lanceolate to narrowly deltate, to 6.5 × 3.5 cm, margins entire;

surfaces abaxially glabrous or very sparingly appressed-strigose on major veins.

blade 1-pinnate;

leaflets 4-10 plus additional tendril-like terminal leaflet, proximal leaflets usually 3-lobed or 3-foliolate, distal leaflets usually unlobed, ovate, 3-10 × 2-7.5 cm, ± thin, not prominently reticulate adaxially;

surfaces abaxially glabrous and glaucous.

axillary, 3-12-flowered cymes or compound cymes or paniculate with cymose subunits.

axillary, 1-3-flowered;

bracts about 1/3 distance from base of peduncle.

bisexual, often some unisexual (staminate) in same inflorescence;

pedicel 1-3.5 cm, slender;

sepals wide-spreading, not recurved, white, linear or elliptic to lanceolate or narrowly obovate, 0.9-2.2 cm, length ca. 2-3 times width, abaxially tomentose along margins, adaxially glabrous;

stamens ca. 50;

filaments glabrous;

staminodes absent;

pistils 5-10.

ovoid;

sepals deep rose-red to purplish red, ovate-lanceolate, 2-2.5 cm, margins not expanded, thick, not crispate, tomentose, tips long-acuminate, ± recurved, abaxially glabrous.

broad, flat, conspicuously rimmed, minutely appressed-silky, sometimes sparsely so;

beak 2-6 cm.

bodies appressed-pubescent;

beak 5-6 cm, plumose.

= 16.