A nearly glabrous shrub, 12 ft. high; branches not verticillate. Leaves oval, subcuspidate, obtuse or rounded at the base, chartaceous, 6–8 by 3 1/3–4 1/2 in., lateral veins about 6 pairs; petiole 3/4–1 3/4 in.; stipules ovate, obtuse, clasping, ciliolate, connate or contiguous at base, 1/3– 1/2 in. long. Flowers 1 1/4–1 1/2 in. long, shortly pedicellate, in dense corymbose cymes terminating the terminal and axillary shoots of the year with leaves as yet not fully developed. Calyx-limb campanulate, 1/10– 1/8 in. long, green, 5-cleft; lobes ovate, obtuse, fimbriate-ciliate. Corolla salver-shaped, white, very fragrant; tube narrow, gradually funnel-shaped above; limb spreading, 5-partite; lobes oblong, obtuse, dextrorsely contorted in the bud (as seen inside). Anthers 5, half exserted. Style filiform; stigma bifid. Placentas 2.