Sycopsis yunnanensis H. T. Chang, Acta Sci. Nat. Univ. Sunyatsen. 1961(4): 55. 1961.

Shrubs or small trees. Petiole 6–9 mm, lepidote; leaf blade oblong, 9–13 × 3–6 cm, discolorous, abaxially glabrous, base broadly cuneate or subrounded, margin entire, apex acute or subobtuse; lateral veins 6 or 7 on each side, abaxially prominent. Inflorescences axillary or terminal on shoots, 3.5–4 cm in fruit; fruiting peduncle glabrous. Flowers not seen. Capsules 3 or 4, stalked or sessile, 8–10 × 6–8 mm, gray-brown villous, apex subacute, persistent floral cup 4–6 mm; persistent styles absent. Fr. Jul–Aug.

Evergreen forests; 800--1000 m. S Yunnan (Xishuangbanna Daizu Zizhizhou).