Shrubs or small trees, 1-5 m tall. Branchlets densely yellow-brown pubescent. Petiole 2.5-5 cm; leaf blade oblong or lanceolate-oblong, 14-25 × 4-6 cm, papery, abaxially and adaxially glabrous, lateral veins ca. 15 on each side of midrib, curved upward, connected with each other near margin, lateral veins and midrib prominently raised abaxially, base rounded, apex acuminate. Inflorescence racemose, axillary, 5-15 cm, yellow-brown hairy. Pedicel 5-10 mm. Epicalyx lobes linear-lanceolate, as long as pedicels. Calyx red, divided to base, lobes narrowly triangular, 10-15 × 3-4 mm, abaxially yellow-brown stellate hairy, adaxially glabrous, incurved and cohering apically with each other. Male flowers: androgynophore ca. 4 mm, curved downward, glabrous. Female flower: ovary ovoid, densely hairy, 4-6 mm. Style curved, hairy. Fruit unknown.

The sepals usually enlarge after flowering.

Forests; 800-1500 m. S Yunnan (Mengzi) [Vietnam].