Vasilis Teodoridis:
Fagaceae | Castanopsis
58. Castanopsis platyacantha Rehder & E. H. Wilson in Sargent; Pl. Wilson. 3: 200. 1916.
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Trees circa 20 m tall. Branches glabrous. Petiole 0.8-1.5 cm; leaf blade ovate; oblong; or obovate elliptic; 10-18 x 3-6 cm; covered with early glabrescent; reddish brown; small; lamellate; waxy scalelike trichomes when young; yellowish gray to silver-gray with age; base rounded to broadly cuneate and oblique; margin serrate or entire; apex acute to acuminate; midvein flat or adaxially slightly impressed; secondary veins 9-13 on each side of midvein. Female flowers 1-3 per cupule. Infructescences 8-15 cm. Cupule subglobose to broadly ellipsoid; 3-4 cm in diam.; irregularly splitting into 2-4 segments; outside grayish brown pubescent; bracts spinelike; circa 3 mm; basally connate into bundles; sometimes united to cristate rings; grayish brown pubescent. Nuts 1-3 per cupule; broadly conical; 1.5-2 x 1.4-2 cm; wall 1.5-2 mm thick; densely brown pubescent; scar covering circa 1/3 of nut. Fl. May-Jun; fr. Sep-Nov of following year
* Broad-leaved evergreen forests; 1500-2500 m. NW Guizhou; Sichuan; NE Yunnan.