Pterospermum kingtungense C. Y. Wu ex Hsue

Pterospermum kingtungense is easily distinguished from other species by its much broader, obliquely obovate petals, ca. 2.8 cm wide, with a rounded apex. It is classified as "Critically endangered" in the IUCN Red List because its very small population is in an unprotected area subject to regular cutting.

Trees, to 12 m tall; bark brown. Branchlets dark brown puberulent. Stipules ovate, scalelike, entire, ca. 4 mm; petiole ca. 1 cm, densely brownish tomentose; leaf blade oblong-obovate in outline, usually irregularly lobed, 8-13.5 × 4.5-6 cm, leathery, abaxially densely yellowish white stellate tomentose, adaxially glabrous, base rounded, truncate, or shallowly cordate, apex irregularly 3-5-lobed, bluntly acuminate. Flowers solitary, ca. 7 cm in diam., nearly sessile; epicalyx lobes ovate, entire, hairy. Sepals linear to narrowly lanceolate, ca. 4.5 × 1.1 cm, abaxially densely dark brown tomentose, adaxially densely yellow-brown tomentose. Petals white, obliquely obovate, ca. 4.8 × 2.8 cm, stellate puberulent, especially at base, base clawed, apex rounded. Androgynophore ca. 6 mm; filaments glabrous, apex of connective pointed and caudate; staminodes linear-clavate, ca. 3.5 cm, glabrous, upper part densely verrucose. Ovary ovoid, densely yellowish brown tomentose; style hairy; stigmas free but twisted together. Capsule not seen.

SW Yunnan (Jingdong).

● Forested valleys on limestone; 1400-1500 m.

Pterospermum kingtungense is a species of flowering plant in the family Malvaceae. It is found only in China. It is threatened by habitat loss.

Pterospermum kingtungense é uma espécie de angiospérmica da família Sterculiaceae.

Apenas pode ser encontrada no seguinte país: China.

Está ameaçada por perda de habitat.

Pterospermum kingtungense là một loài thực vật có hoa trong họ Cẩm quỳ. Loài này được C.Y. Wu ex H.H. Hsue miêu tả khoa học đầu tiên năm 1977.

景东翅子树（学名：Pterospermum kingtungense）为梧桐科翅子树属下的一个种。