Vasilis Teodoridis:
Aceraceae | Acer
3d. Acer amplum subsp. catalpifolium (Rehder) Y. S. Chen; Fl. China. 11: 519. 2008.
??? zi ye feng
Basionym: Acer catalpifolium Rehder in Sargent; Pl. Wilson. 1: 87. 1911; A. cappadocicum subsp. catalpifolium (Rehder) A. E. Murray.
Leaf blade ovate or ovate-oblong; 8-20 x 5-9 cm; abaxially glabrous except with tufts of hairs at bases of veins; adaxially glabrous; base rounded or nearly so; undivided with margin entire or occasionally with undeveloped lateral lobes below middle; apex acuminate. Fruit yellowish; glabrous; fruiting pedicel 2-3 mm; nutlets ovoid; compressed; wing including nutlet 5-5.5 x ca. 1.4 cm; wings spreading at erect; obtuse; or acute angles. Fl. Apr; fr. Aug-Oct.
? Mixed forests; valleys; 500-2000 m. NE Guangxi; N Guizhou; Sichuan.