Single-stemmed shrub or tree 4-8 m tall; branchlets, leaf axes and petiolules minutely puberulous. Leaves: axes with ±raised glands at apex of main axis and at each leaflet pair; pinnae 1-jugate; leaflets 5-jugate (one of basal pair sometimes absent), with petiolules to 9 (-15) mm long; lamina oblong-elliptic, elliptic and lanceolate-elliptic, acute to acuminate, commonly mucronate, 9-44 cm long, 5-14.5 cm wide. Inflorescences cauliflorous and ramiflorous, to 6.5 cm long, glabrous. Flowers sessile, creamy white, glabrous; calyx tubular, 5-9 mm long, truncate or with minute teeth; corolla tubular-funnel-shaped, 25-32 mm long. Pod contorted, deeply constricted along one margin between seeds, c. 8 cm long, 20 mm wide, woody, orange or red, glabrous. Seeds ellipsoidal, 10-15 mm long, 6-8 mm diam., black, subglossy.