Plant: Vine, climbing; herbage glabrous or soft-hairy Leaves: simple, opposite, entire, short-petioled, generally 3-8 cm; blade oblong to ovate, base rounded, tip ± acute; 1-2 pairs beneath inflorescence often fused around stem INFLORESCENCE: flowers paired, each pair subtended by 2 leaf-like bracts and 4 ± round bractlets that are ± 1/2 ovary length; peduncles short, axillary Flowers: calyx tube fused to ovary; corolla 25-40 mm, strongly 2-lipped, white turning yellow, often tinged purplish, tube hairy, pouched at base; stamens, style and stigma exserted; ovary chambers 2-3 Fruit: berry, black Misc: Disturbed places; generally < 1000 m.; Spring and summer