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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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Key to Fagaceae

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1 Fruits partially enclosed in a scaly cup; leaves lobed, toothed, crenate, or entire
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
..2 Nuts sharply triangular; bur with short, recurved prickles; winter buds 1.5-2.5 cm long; leaves ovate, 6-12 cm long
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