Vines; rhizomes slender, running. Stems perennial, climbing to clambering, branching, slender, 2–6 m, woody, glabrous; prickles scattered, subulate. Leaves deciduous to semievergreen; petiole 0.5–1 cm; blade abaxially green, drying to lightly orange-tinted brown, ovate-oblong, to ovate-lanceolate, with 3 prominent veins, thin, 6–10 × 3–7 cm, glabrous or minutely pubescent abaxially, not glaucous, base rounded, subcordate, or, sometimes, cuneate at petiole insertion, margins entire, apex acute, mucronate. Umbels few to many, axillary to leaves, few-flowered, loose, hemispherical; peduncle 0.5–2 cm, generally shorter than petiole of subtending leaf. Flowers: perianth brownish yellow; tepals 3–6 mm; ovule 1 per locule; pedicel 0.5–1 cm. Berries bright red to orange, globose, 7–9 mm, shining.
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Slender woody vine, unarmed except for a few small, flat, slightly recurved prickles at base; lvs deciduous, firm, shining above, ovate or triangular-ovate or lance-triangular, 7–12 cm, acute or obtuse, entire, 3-or 5-nerved, prominently reticulate; peduncles flattened, about equaling the subtending petioles; staminate tep 6 mm, broadly recurved; frs red, few in a cluster, 7–9 mm, 1–3-seeded; 2n=32. Swamps and wet woods; Md. to n. Fla., w. to La. May.