Small to medium-sized, often twining liana or lianescent shrub.. Branchlets often grooved lengthwise, shortly appressed hairy, glabrescent.. Stipules subappressed, narrowly triangular, (1–)2–5(–6) mm. long, shortly appressed hairy, often long-persistent.. Petiole (2–)3–5(–7) mm. long, shortly appressed-hairy; blade elliptic to slightly obovate, rarely ovate, (3.5–)8–11(–12) × (1–)3–4(–5) cm., rounded to cuneate at base, gradually acuminate at apex, the acumen usually 0.5–1 cm. long, mucronate to acute to obtuse apically; glabrous above or with a few hairs on the midrib when young, soon glabrescent, beneath subappressed hairy on midrib and, to a lesser extent, on main lateral nerves and margin, midrib plane or slightly impressed above, the 4–6(–7) pairs of main lateral nerves and tertiary nerves slightly prominent above; glands usually present, often few, beneath only, small, inconspicuous, rather well dispersed.. Inflorescence subumbellate, indistinctly branched or basally once distinctly so, up to ± 35-flowered, shortly appressed hairy; peduncle 0–2(–3) mm. long, free to completely adnate to petiole, the blade of the supporting leaf sometimes absent; bracts and bracteoles ovate-triangular, up to 1 mm. long; pedicel very slender, shortly appressed hairy, up to ± 15 mm. long, the upper part 3–6 mm. long.. Sepals reflexed, shortly united at base, oblong-triangular, 2.5–3.5 × 0.5–1 mm., subappressed-pubescent to tomentellous outside and on apical part inside.. Petals slightly spreading to reflexed, obovate in outline, 3–4.5 mm. long, split 2–3 mm., glabrous or with a few hairs below split outside.. Stamens suberect, subequal in length to petals or slightly longer, glabrous.. Pistil (2–)3(–4)-merous, 3.5–6 mm. long; ovary lanate, style glabrous, shortly (2–)3(–4)-lobed at top.. Fruits 1–2(–3)-seeded, distinctly lobed when more than 1-seeded, tomentose to tomentellous; 1-seeded fruits subellipsoid, up to ± 18 × 12 mm.; endocarp rather thin, villous inside.. Seeds subellipsoid, ± 10 × 5 mm.
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