Vasilis Teodoridis:
Vasilis Teodoridis:
Acer caesium Wallich ex Brandis; Forest Fl. N. W. India. 3: 111. 1874.
Acer caesium subsp. giraldii (Pax) A. E. Murray; A. giraldii Pax.
Trees to 25 m tall; andromonoecious. Bark gray. Branchlets glabrous; usually glaucous; winter buds ovoid; margin ciliate. Leaves deciduous; petiole purplish green; 10-15 cm; glabrous; leaf blade abaxially glaucous; adaxially green; 11-21 x 11-14 cm; papery; lateral veins 7-9 pairs; distinct abaxially; base cordate; 5-lobed; rarely 3-lobed; lobes triangular; 1-1.5 cm; margin serrulate; apex acuminate. Inflorescence terminal; corymbose; peduncles ca. 6 cm. Sepals 5; yellowish green; ca. 5 x 3 mm. Petals 5; white; oblanceolate; ca. 5 x 1.5 mm. Stamens 8; 3-5 mm. Disk glabrous; extrastaminal. Ovary pubescent. Fruit yellowish; nutlets convex; ca. 8 mm in diam.; wing including nutlet 4-5.5 cm; wings spreading erectly. Fl. May-Jun; fr. Sep. 2n = 26; 52.
Alpine forests; 2000-3700 m. SE Gansu; SW Henan; W Hubei; Ningxia; S Shaanxi; Sichuan; SE Xizang; NW Yunnan [N India; Nepal; Pakistan