Shrub about 3 m. high, glabrous.. Leaves: pinnae 1–3 pairs; leaflets 1–3 pairs, obliquely suborbicular to broadly obovate or rhombic, 15–25 mm. long and as wide or somewhat narrower [in Busse 258 20–35 mm. long, about 18–35 mm. wide], rounded-obtuse or slightly emarginate at apex, glabrous, somewhat glaucous beneath.. Flowers white, on pedicels 2–3 mm. long.. Calyx 1–2 mm. long, glabrous.. Corolla glabrous outside.. Staminal tube long-exserted.. Pod [described from Busse 258] more or less oblong and somewhat transversely plicate, 10–14 cm. long, 2.5–2.9 cm. wide, glabrous, eglandular, venose, brownish-purple.. Seeds 8.5–11.5 mm. long, 8–10 mm. wide, flattened.