Climber. Bark brown. Branchlets weakly or strongly angled, sparsely lenticellate or not, glabrous or sparsely and minutely puberulent. Leaves in whorls of 3; petiole 0.3-0.6 cm long, glabrous or pubescent; blade subcoriaceous, elliptic, 1.7-7.2 by 0.4-2.9 cm, 1.8-4.3 times as long as wide, apex obtuse or shortly acuminate, acumen obtuse, base cuneate, margin weakly undulate, glabrous or sparsely puberulent only on midrib beneath, glabrous or puberulent only on midrib above, not punctate beneath, secondary veins 24-38 pairs, 70-75° from midrib. Inflorescence axillary, a compound pleiochasium with clear internodes or with 1 or 2 internodes and unbranched side branches, delicate, sparsely to densely puberulent, 1-2.9 cm long; peduncle 0.3-0.9 cm by 0.7-0.9 mm; bracts caducous or persistent, deltoid, 0.9-1 by 0.6-0.8 mm; bracteoles absent; flowers 4-12; pedicels 0.9-2 mm long. Sepals ovate, 1-1.2 by 0.4-0.8 mm, 1.5-2.5 times as long as wide, apex acute, ciliate, glabrous to densely puberulent. Corolla tube brown with green lobes or with pink tube and white lobes; bud head c. 1.9 mm long which is 0.48 of bud length, narrowly ovate, apex obtuse or acute; tube slightly or strongly inflated, 2.7-3.1 by 1-1.7 mm, 2.3-2.8 times as long as sepals, 1.5-2.1 times as long as lobes, glabrous or sparsely puberulent around top of tube outside, glabrous inside or very sparsely pubescent in upper half of tube; lobes elliptic, apex obtuse, base auriculate, 1.3-2.1 by 1.1-1.3 mm, 1.2-1.6 times as long as wide, glabrous or sparsely puberulent outside, pubescent at base of lobes inside, ciliate or ciliate near tips only. Stamens inserted at 1.6-1.9 mm from corolla base which is 0.51-0.57 of tube length; filaments 0.5-0.6 mm long; anther apex 0-0.5 mm from corolla mouth, anthers 0.9-1 by 0.3-0.4 mm. Ovaries c. 0.8 mm high, densely pubescent all over; style 0.6-0.7 mm long; style head 0.5 mm long, glabrous or pubescent. Fruit stalks c. 1.8 mm long, with 1 article, glabrous, articles fleshy, 15-16.2 by 6.9-8.2 mm, ellipsoid, symmetrical, apex rounded.
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