Shrubs to 3 m tall. Branches terete, puberulent, brown, minutely lenticellate. Leaves unifoliolate; petioles slightly flattened adaxially, submarginate, 1-2.5 cm long, glabrous; leaflets chartaceous-coriaceous, elliptic to obovate, 6-13 (-20) × 3.5-6.2 (-7.5) cm, the base obtuse, the apex acute to obtuse and retuse or subacuminate, the margins subentire, crenate-serrate. Thyrses simple or panicle-shaped, longer or shorter than the subtending leaf; cincinni sessile, 2-3-flowered. Calyx with a dorsiventral-transversal symmetry, puberulent, the sepals 4, concave, rounded, ciliate, outer sepals ca. 1 mm long, inner sepal ca. 1.5 mm long; petals spatulate, ca. 1.5 mm long, clawed, with a pair of marginal appendages; disc minutely 4-lobed, glabrous; androgynophore ca. 0.6 mm long; ovary bilobed, puberulent. Fruit developing a single monocarp, these ellipsoid to slightly obovoid, glabrous, ca. 1.2 cm long.