Large trees at maturity, branching widely at top.Bark is smooth and lightbrownish-gray in colour. Leaves are odd-pinnate, obovate to oblong in outline. Inflorescence is on a stout peduncle. Corolla tube is 7.5-9 cm long, 5-6 cm broad, bright reddish-orange.Tube is yellowish-orange within. Capsule is brownish-black, 15-23 cm long and 3-5 cm broad. Seeds are winged