Climber, up to 10 m; twigs terete, internodes 4-7 cm, light brown, glabrous, with numerous lenticels. Leaves oblong, twice as long as broad, 7-12 by 3½-5(-6) cm; base acute to rounded, without or with 2 small glands; top distinctly acuminate; nerves 4-5 pairs; surfaces both glabrous; petiole 3U cm. Inflorescences at the ends of the twigs, terminal and axillary, sparsely fulvous-sericeous haired, sometimes secondarily branched, (6-) 10-15 cm long; rhachis stout, terete, 1.5-2 mm in diam. at the base. Bracts small and acute, mostly caducous, or wanting. Pedicels 1.5-2.5 cm, articulated somewhat above the middle, the articulation marked by a whorl of appressed hairs, upper portion thickened towards the flower. Bracteoles sometimes caducous, inserted halfway the lower portion of the pedicel. Flowers pink. Sepals triangular-elliptic, 2-3 by 1-2 mm, top obtuse-rounded, outside densely fulvous-sericeous, inside glabrous. Petals 5-10 mm long including the distinct claw, 4-6 mm broad, entire to subcrenulate, except the claw and lower portion of the midrib outside petals quite glabrous, inner one nearly without basal outgrowths. Filaments terete, longer one 7-8, other ones about 3 mm. Style glabrous, acute. Samaras: middle wing 2.5 by 1 cm, lateral wings 1.5 cm long.
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