Small tree. Branchlets, stipules and stipular glands unknown. Leaves with one pair of pinnae, each with 5 or 6 pairs of petiolulate leaflets; petiolules 4-7 mm, leaflets lanceolate-oblong, 13-20 by 5-7 cm; base obliquely obtuse or acute, apex short-acuminate, both surfaces glabrous, lateral veins ascending. Inflorescences borne on trunk and branches; short-puberulous, consisting of flowering racemes 3-6 cm; bracts lanceolate, acuminate, 1-3 mm. Calyx short, broadly cup-shaped, 3-4 mm, glabrous or subglabrous, with crenulate margin. Corolla 14-16 mm, glabrous, 5-lobed; lobes deltoid-lanceolate, 6-7 mm or more. Stamens 40 mm. Ovary, pod and seeds unknown.