Large forest tree, the branchlets glabrous except at the extreme tips and some-what corky or irregular. Leaves large, bipinnate, the pinnae (1) 2-3 pairs op-posite on the rachis, the leaflets (2) 3-4 (5) pairs per pinna; petiole slender, 2-8 cm. long, terete, glabrous or lightly puberulent, swollen basally, bearing a longi-tudinally elongate, concave gland sunken in the upper surface of the petiole below the middle; primary rachis similar to the petiole, eglandular, longitudinally sulcate above; pinnular rachis similar, except bearing glands like that of the petiole at the upper pinnular nodes; leaflets opposite, ovate-lanceolate to ovate-elliptic, mostly 2-4 cm. long and 1-2 cm. wide, bluntly acute apically, mostly obtuse basally, dull and lightly puberulent above, lighter and puberulent below, the veins very promi-nent and reticulate above; stipules apparently lacking. Inflorescence a terminal or subterminal panicle, the ultimate divisions capitate from slender, puberulent, ebracteolate peduncles; heads several-flowered, dense, minutely bracteolate. Flowers small, white, fragrant; calyx funnelform, little more than 1 mm. long, silvery-pubescent above, the teeth small; corolla funnelform, about 3 mm. long, puberu-lent or subglabrous, the teeth as long as the tube; stamens many, about 1 cm. long, glabrous, the staminal tube about equalling the corolla; ovary glabrous. Legume broadly linear, 10-17 cm. long and 1.5-2.0 cm. wide, flat and thin, glabrous, trans-versely striate, dehiscent, 10-to 13-seeded.
Common in dry, degraded seasonal forest; also in secondary vegetation on slopes with superficial soil; less frequent in Pine-Quercus forest.; at elevations from sea level to 100 metres, occasionally ascending to 1,500 metres.
Can be grown by seedlings. Seeds needs soaking.
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