Liana, lianescent shrub, or shrub up to 6 m. tall.. Branchlets tomentose to hispid, or with a mixture of short and long hairs, glabrescent with age; orthotropic shoots in lianescent specimens usually hollow.. Stipules palmately to pinnately divided into filiform, usually curved segments, 4–10 mm. long, hispid-strigose to pubescent-tomentose, rather long-persistent.. Petiole subterete, 1–3(–10) mm. long, hairy as branchlets; blade obovate-elliptic, sometimes oblong, 5–15(–18) × (2–)3–7(–10) cm., cordate to subcordate at base, acute to shortly acuminate at apex, the acumen at most 0.5 cm. long, subappressed-pubescent to puberulous or strigose mixed with shorter hairs above, especially so on midrib and main lateral nerves, glabrescent, beneath subappressed pubescent to densely tomentose or even densely white villous, often with a more sparse strigose indumentum as well, especially so on midrib and main lateral nerves, the midrib and the (6–)7–10(–14) pairs of main lateral nerves usually ± impressed above, prominent beneath, the margin revolute or not.. Inflorescence cymose, up to ± 5 times distinctly dichotomously branched, up to at least 100-flowered, pubescent-tomentose to hispid or with a mixture of long and short hairs; peduncle (1–)1.5–2.5(–4) cm. long, often shortly adnate to petiole of supporting leaf; bracts and bracteoles linear, usually curved, up to 8 mm. long, rarely somewhat foliaceous and up to 12 mm. long; pedicel up to ± 10 mm. long.. Sepals reflexed in fully developed flowers, ovate-elliptic to oblong-obovate, 2.5–4 × 1–1.5 mm., tomentose outside, glabrous or with a few hairs inside.. Petals white, turning black, erect to slightly spreading or even reflexed, narrowly obovate-spathulate in outline below split, rarely so on the lobes, glabrous inside.. Stamens suberect, apical part curved inwards, (3–)3.5–4.5 mm. long, glabrous.. Pistil 3-merous, (2–)3–3.5(–4) mm. long; ovary and lower part of style densely lanate.. Fruits 1–3-seeded, densely tomentose; 1-seeded fruits ovoid-ellipsoid, 1.5–2.5 cm. long, ± 1 cm. in diameter.. Seed ellipsoid, up to ± 10 × 6 mm., sericeous.. Fig. 3.
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Leaves subsessile or very shortly petiolate; lamina 6–15 × 4–6·5 cm., oblong-elliptic, broadly acute or obtuse, thinly pilose above and with scattered appressed long hairs, with paler sparse short pubescence below but with long hairs on the nerves, mucronate or shortly apiculate at the apex, distinctly cordate at the base; lateral nerves 5–7 pairs, prominent below, conspicuous above; petiole up to 4 mm. long, reddish-yellow-villous; stipules c. 1 cm. long, persistent, pinnatipartite, pilose, with filiform segments.
Scandent shrub up to 2 m. tall; branches, branchlets and peduncles terete, covered with long reddish-yellow bristly hairs and also short hairs.
Petals c. 4 mm. long, obovate, free, 2-lobed for about half their length, narrowed at the base.
Cymes 2–5 cm. long, axillary; bracts setaceous; pedicels slender, pilose, articulated above.
Sepals c. 3 mm. long, ovate, whitish-tomentose outside, at length recurved.
Ovary villous; style c. 2 mm. long, glabrous, shortly 3-lobed.
Fruit c. 1·5 cm. long, villous, oblong.
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