Ardisia undulata Mez (1902) not C. B. Clarke (1882).

Shrubs 2(-5) m tall, strigose on branchlets, abaxial leaf surface, and inflorescence branches. Branchlets terete, 3-4 mm in diam. Petiole marginate, 5-8 mm; leaf blade oblanceolate to narrowly oblong- or elliptic-lanceolate, 7-11 × 2-3 cm, membranous, sparsely punctate, base cuneate, margin entire or subcrenate, with vascularized marginal nodules, apex caudate-acuminate, acumen 1-2 cm; lateral veins ca. 15 on each side of midrib, inconspicuous, marginal vein absent. Inflorescences terminal panicles of corymbs on specialized lateral branches 30-50 cm. Flowers papery, pink, ca. 6 mm. Pedicel 1-1.5 cm. Sepals oblong-ovate, 2.5-3 mm, epunctate, somewhat puberulent at base, margin entire, apex acute or obtuse. Petals nearly free, oblong or ovate, epunctate, densely glandular papillose adaxially at base, margin entire, apex acute. Stamens ca. 2/3 as long as petals; filaments shorter than anthers; anthers lanceolate, longitudinally dehiscent, punctate dorsally, apex acute. Pistil subequalling petals; ovary glabrous; ovules 4 or 5, uniseriate. Fruit red, globose, ca. 6 mm in diam., glabrous, punctate.

Evergreen broad-leaved forests, dark damp places, valleys; 900-1400 m. Guangxi, Yunnan [Vietnam]