Description from Flora of China
Shrubs, ca. 2 m tall. Branchlets terete, glabrous. Petiole ca. 2 mm; leaf blade ovate-lanceolate or elliptic-lanceolate, 4.5-7 × 1.5-2.5 cm, papery, glabrous, lateral veins 5 or 6 pairs, base broadly cuneate to subrounded, apex long acuminate. Panicles 5-8 × 2-3 cm, slender, glabrous. Floral tube 6-merous, 1-1.2 cm, prominently sharply 6-ribbed, glabrous; sepals ca. 2 mm, adaxially glabrous; annulus absent; epicalyx segments prominent, linear, to 3 mm, ca. as long as or surpassing sepals. Petals white, suborbicular, ca. 1.4 cm including claw ca. 6 mm. Stamens ca. 36, dimorphic. Ovary glabrous. Capsules subglobose or oblong, ca. 7 mm, 4-valved, smooth walled. Seeds unknown. Fl. May-Jun, fr. Sep.
● Scrub on limestone mountains. Guangxi.