Description from Flora of China
M. striata Mez var. opaca Pitard.
Shrubs 1-2(-4) m tall. Branchlets terete, slender, glabrous; pith hollow. Petiole canaliculate, 6-10 mm; leaf blade lanceolate or broadly so, 9-17 × 2-5 cm, papery, glabrous, inconspicuously pellucid punctate, glossy adaxially, dull abaxially, base obtuse or subrounded, margin entire to obscurely undulate, apex acuminate or caudate-acuminate; lateral veins 4-6 on each side of midrib, curved ascending. Inflorescences terminal or subterminal, paniculate, pyramidal, 5-8 cm; lower branches glabrous, glossy, up to 4 cm; bracteoles minute, lanceolate, near or at apex of pedicel. Flowers ca. 3 mm. Pedicel slender, 4-5 mm. Calyx lobes ovate, obtuse or acute, ca. 0.5 mm. Corolla lobes ovate, ca. as long as tube, irregularly crenulate at apex. Stamens reduced in pistillate flowers. Pistil included. Stigma scarcely lobed. Fruit globose or subovoid, ca. 3 mm in diam., enclosed by persistent calyx lobes or apex exposed, base ± conical. Fl. Jan-Feb, fr. Nov-Dec.
Evergreen broad-leaved forests, mountain slopes, stream banks, damp places; 100-600 m. Guangxi, Hainan, SE Yunnan [Vietnam]