A tree, 15–25 ft. high; branchlets glabrous. Leaves 5 1/2–10 in. long; leaflets 7, ovate or elliptic-oblong, rather abruptly acuminate, 1 1/2–5 in. long, 1–2 in. broad, entire, very minutely and sparsely puberulous and lepidote. Raceme terminal; rhachis lenticellate. Peduncles 2 lin. long, pilose, soon glabrescent; pedicels 3 lin. long or less. Calyx 5 1/2–6 lin. long, uncinate, split down to within 1/2–2 lin. from the base, lepidote. Corolla-tube campanulate-funnel-shaped, 11–12 lin. long, greenish-yellow with purple spots; basal cylindric portion 2 1/2 lin. long, 1 1/3 lin. in diam.; lobes brownish-purple, 4–6 lin. long, crenulate. Stamens inserted 2 1/2–3 lin. above the base of the corolla-tube; anther-lobes 7/8 lin. long, obtuse at the base. Disc annular, 2/3 lin. high. Ovary 2 1/3 lin. long, lepidote. Capsule falcate, 1–1 1/2 ft. long, 4–5 lin. broad, lenticellate; seeds 8–9 lin. long, 2 1/3–3 1/2 lin. broad; nucleus 2 1/2–2 2/3 lin. long.
