Tree up to 10 m. high, the young branchlets ferruginous-sericeous. Leaf petioles 1.0-1.5 cm. long, the upper part narrowly winged; blades blacken when drying, glabrous on upper side from the first, with sparse short appressed hairs beneath (longer on the midrib) and more or less glabrescent, elliptic to obovate, acute and long-decurrent at the base, rather abruptly contracted into an obtuse cusp 1-2 cm. long, 15-20 cm. long and 5-8 cm. broad. Flowers solitary, pedicels 1.5-2.0 cm. long, rigid. Sepals rotundate-ovate, about 4 mm. long and broad, soon recurvate, deciduous, sericeous outside, glabrous inside. Petals broadly ovate, rotundate at the apex, 8-12 mm. long and broad, golden yellow-sericeous outside, tomentellous inside, the inner a little smaller. Stamens 1.2-2.0 mm. long.