No key was found for the requested taxon, but it is the only child of Castanea. Showing where it is keyed below.
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1 Fruits enclosed in a spiny or prickly bur; leaves toothed.
..2 Nuts rounded or flattened on one or two sides; bur with long, straight spines; winter buds < 1 cm long; leaves elliptic or oblanceolate, some of them usually > 12 cm long