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5b. Pterocarya macroptera var. delavayi (Franchet) W. E. Manning, Bull. Torrey Bot. Club. 102: 165. 1975.
云南枫杨 yun nan feng yang
Pterocarya delavayi Franchet, J. Bot. (Morot) 12: 317. 1898; P. forrestii W. W. Smith.
Trees to 15 m tall. Leaves 20-45 cm; petiole 5-13 cm; leaflets 7-13, lateral ones elliptic or elliptic-ovate to elliptic-lanceolate, 7-19 × 3-6 cm, base oblique, slightly cordate or broadly cuneate, apex acute or acuminate. Fruiting spike 50-60 cm, axis tomentose. Nutlets circa 8 mm, tomentose; wings orbicular-ovate to elliptic, 1-2.5 × 1-1.3 cm. Fl. Apr-Jun, fr. Jul-Aug
* Forests on mountain slopes; 1900-3300 m. W Hubei, W Sichuan, Xizang, NW Yunnan.
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