Trema dielsiana Handel-Mazzetti, Symb. Sin. 7: 106. 1929; T. calcicola S. X. Ren.

Branchlets reddish purple, brown with age, densely hirsute with obliquely spreading hairs. Petiole hirsute with obliquely spreading hairs; leaf blade thinly papery, abaxially sparsely pubescent, surface of blade visible between hairs, usually with crowded minute dark red sessile glands, adaxially green or brown when dry, scabrous. Male cymes longer than petiole. Male flowers: tepals ovate, inner surface strigose. Anthers with purple variegations.

* Scrub on sunny slopes; (100-)600-1100 m. Anhui (Dabie Shan), Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, S Jiangsu, Jiangxi, E Sichuan, Yunnan, Zhejiang.