Cyrtandra oxybapha is a perennial shrub approximately 2 to 3 m (7 to 10 ft) tall, with many-branched stems. Leaves are opposite on the upper three to four nodes, unequal and slightly asymmetrical, papery, and circular to broadly elliptic, 12 to 18 cm (5 to 7 in) long, and 8 to 9 cm (5 to 7 in) wide. The upper surface of the leaf is moderately hirtellous (extremely pubescent with rather coarse or still, often bent or curved hairs) and the lower surface is densely velvety villous (pubescent with long, soften curved but not matted hairs). Flowers are one to two in cymes (broad class of determinate inflorescences) arising from the leaf axils (point between the stem and a leaf petiole or branch) and densely villous throughout. The calyx (sepals of the flower) is nearly actinomorphic (radially symmetrical), pale green, papery, bell-shaped, and 21 mm (0.8 in) long, and the corolla (petals of the flower) is white with a flaring cylindrical tube 19 to 20 mm (0.75 to 0.79 in) long and 10 to 11 mm (0.39 to 0.43 in) in diameter. Berries are white, ovoid (egg-shaped), 1.8 cm (0.7 in) long, and surrounded by a persistent, spreading calyx.