杈叶枫 cha ye feng

Acer anhweiense W. P. Fang & M. Y. Fang; A. anhweiense var. brachypterum W. P. Fang & P. L. Chiu; A. campbellii J. D. Hooker & Thomson ex Hiern subsp. robustum A. E. Murray; A. robustum Pax (1902), not Opiz (1852); A. robustum var. honanense W. P. Fang; A. robustum var. minus W. P. Fang.

Trees 5-10 m tall, andromonoecious. Branchlets slender, glabrous; winter buds ovoid. Leaves deciduous; petiole 4-5 cm, glabrous or slightly villous toward apex; leaf blade 4-13 × 4-14 cm, papery or membranous, base truncate or subcordate, 7- or 9-lobed; lobes ovate or ovate-oblong, 4-5 cm, margin remotely and irregularly serrate with sharp teeth, apex caudate-acuminate. Inflorescence terminal, 4-8-flowered; peduncle 3-4 cm. Pedicel 1-1.5 cm, glabrous. Sepals 5, purple, ovate-oblong. Petals 5, oblong or obovate-oblong. Stamens 8, glabrous. Disk glabrous, extrastaminal. Ovary glabrous or slightly villous; style ca. 3 mm; stigmas ca. 1 mm. Fruit greenish yellow; nutlets ellipsoid, 5-7 × 4-5 mm; wing including nutlet 2.2-4 × ca. 1 cm, wings spreading horizontally or obtusely. Fl. May, fr. Sep.

● Forests; 700-2000 m. Anhui, S Gansu, Henan, W Hubei, S Shaanxi, Shanxi, Sichuan, Zhejiang.