Description from
Flora of China
Replaced synonym: Sterculia viridiflora H. T. Tsai & P. I Mao, Acta Phytotax. Sin. 9: 201. 1964, not Sterculia viridiflora W. Fitzgerald, J. Proc. Roy. Soc. Western Australia 3: 177. 1918.
Shrubs. Branchlets gray tomentose when young. Stipules lanceolate, ca. 4 mm; petioles 1.5-3 cm, not swollen at ends, yellow-brown puberulent; leaf blade elliptic or oblanceolate-elliptic, 11-23 × 4-10 cm, membranous, abaxially and adaxially glabrous, lateral veins 12-14 on each side of midrib, prominent on both surfaces, venation lax, base attenuate and obtuse, apex acute. Inflorescence racemose, nearly terminal, minutely red-brown pilose. Pedicel ca. 6 mm, articulate. Calyx green, divided to near base, both surfaces nearly glabrous or minutely pilose near apex, lobes triangular, ca. 8 mm, apically cohering with each other. Androgynophore tomentose. Fruits unknown.
The earlier intended nomen novum "Sterculia gengmaensis" (H. H. Hsue, Acta Phytotax. Sin. 15(1): 74. 1977) was not validly published because a full and direct reference to the place of publication of the replaced synonym was not given (Vienna Code, Art. 33.4).
● Forests; 1600-1700 m. S Yunnan (Gengma).