Liana or rarely shrub. Leaves with the blade obovate, the apex acuminate to obtuse, the base acute to subattenuate, the margins entire to serrate, 9-20 cm long, 5-8 cm wide, chartaceous, pustulate, the pustules heavily incrusted with silica and bearing a simple or stellate hair at the center, the secondary veins 10-25; petioles 10-20 mm long, distinctly alate to the axil. Flowers 5-12 mm broad, pedicellate, rarely subsessile; sepals 5, elliptic to ovate, 2-5 mm long, 2-3 mm wide, densely pubescent with filiform hairs within; stamens 120-200, the filaments 5 mm long, the thecae ca 0.5 mm long, basally divergent; carpels 4-5, pyriform, the styles 2 mm long, the stigmas peltate, emarginate. Follicles glabrous to apically barbate, dark brown, 6-8 mm long, 3-4 mm wide, the persistent styles 1-2 mm long.
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A creeper. The leaves are oval and taper to the tip. They are 9-20 cm long by 5-8 cm wide. There can be teeth salong the edge.