Tree up to 18 m. tall, the younger stems, petioles, and pedicels closely red-brown-pubescent; petioles slender, 1-2 cm. long; leaf-blades oblong or oblong-elliptic, 8-14 cm. long, about half as wide, abruptly acuminate to a slender tip, obtuse to rounded at base, glabrous, 5-pli-nerved, the secondary veins 1-1.5 mm. apart; peduncles stout, solitary, 3-6 cm. long; bracts foliaceous, spreading, separate to the base, the outer about 3 cm. long, 2 cm. wide, the inner somewhat smaller; calyx-lobes manifest, depressed-triangular; petals very obliquely cuneate-obovate, white, about 3 cm. long.