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Evergreen woody climber. Lvs glabrous or sparsely hairy beneath, or rarely the youngest sparsely hairy, 3-foliolate, 3-10-(16) × (3)-4-8-(14) cm; leaflets coriaceous, very variable in shape and lobing, from lanceolate to broadly ovate, entire to crenate to deeply pinnatifid to 2-pinnatisect to pinnate; petiole (1)-2-5-(7) cm long. Fls unisexual, solitary or 2-4-(6) clustered in lf axils or in dichasial cymes of up to 6. Bracts paired, connate, usually inserted about or below middle of pedicel. ♂ fls: sepals (5)-6-(8), imbricate, pale yellow, greenish yellow or rarely greenish white, glabrous or sparsely silky hairy above, silky hairy to hairy beneath, lanceolate to ovate to narrow-oblong, 10-20-(30) × 2-8 mm; anthers 2-3 mm long; filaments glabrous. ♀ fls: sepals similar to ♂, 10-20-(25) × 3-6-(10) mm; staminodes few. Achenes hairy or glabrous, (2)-3-4-(5) mm long. Style (1)-2-3.5 cm long at fruiting.
Leaflets thinly coriaceous, glabrous, crenate or crenately lobed. Infl. usually ample. Sepals white, narrow-ovate to narrow-oblong, glabrate to ± pubescent beneath.
