Liana; stems divaricately branched, minutely puberulent to glabrate in age; tendrils stout, curled. Petioles and midribs sparsely pubescent; petioles mostly 2-7 mm long; blades usually narrowly elliptic or lanceolate, acuminate, rounded to acute at base, 6-17 cm long, 3-6 cm wide, +/- thick, with brown trichomes on lower surface in axils of central vein pair, pliveined, the veins 3 or 5. Thyrses short, axillary, to 3 cm long; flowers 4 (5)-parted; inflorescence branches and calyx lobes to 2 mm long; corolla yellowish, bearded inside tube, 2-3 mm long; filaments attached to corolla tube; style long-exserted, to 7 mm long, glabrous. Fruits globose or ovoid, ca 4 cm diam, yellow at maturity; seeds few, irregularly oblong, to 2 cm long and 1.5 cm wide. Croat 15079, Foster 1465. Rare, in the forest. On BCI some flowers have been seen in December.