Shrubs evergreen, scandent, armed. Branchlets grayish brown or dark brown, with incurved, hooklike stout spines, glabrous or puberulent at base only, sometimes yellow-brown pubescent. Leaves alternate or subopposite; petiole 8-15(-17) mm, glabrous, sometimes yellow-brown pubescent; leaf blade adaxially shiny, oblong or narrowly elliptic, rarely ovate-elliptic, 9-15(-20) × 4-6(-7) cm, leathery, abaxially barbate at vein axils or sparsely pubescent, glabrescent, adaxially glabrous, lateral veins 7-10 pairs, prominent abaxially, impressed adaxially, base rounded or subrounded, margin serrulate, apex caudate-acuminate, acuminate, or shortly acuminate. Flowers sessile, glabrous, usually 2-or 3-fascicled in lax terminal or axillary spicate panicles; rachis ca. 15 cm, brown or canescent tomentose or densely puberulent; bracts ovate, small, sparsely puberulent. Ovary 2-loculed, with 1 ovule per locule; style short; stigma capitate. Drupe subsessile, deep red or purple-black at maturity, subglobose, 7-10 × 5-7 mm, with 2 pyrenes, often white powdery. Seeds brown, flat, ca. 6 mm, emarginate at both ends, asymmetrical. Fl. Jul-Aug, fr. Aug-Oct.
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Evergreen liane, the youngest stems sparsely rusty-pubescent with bifid-medifixed hairs. Leaves subopposite, sparsely pubescent on the veins abaxially, otherwise glabrous; lamina ovate to obovate, (50–) 75–140 (–180) mm long, (20–) 30–50 (–65) mm wide, base obtuse or cuneate, margin finely serrulate, apex acute to bluntly acuminate; petiole 5–12 mm long; stipules narrowly triangular, 3–4 mm long, glabrous or sparsely pilose. Inflorescences axillary, the axes densely rusty-pubescent; bracts persistent; flowers sessile. Hypanthium 1.5–2 mm diam., glabrous or sparsely rusty-pubescent. Sepals 1.3–1.7 mm long, glabrous. Petals 0.5–1 mm long. Stamens 0.9–1.2 mm long. Style 0.3–0.4 mm long. Fruit red becoming black when ripe, globular, 11–15 mm long.
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