Trees often mistaken for true chestnuts

 

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Chestnut Oak
(Quercus prinus)

Edges of leaf are scalloped
Produces acorns
Buds covered with scales
American Beech:
(Fagus grandifolia)

Leaves broad and short
Beechnut is tiny
Very long, thin buds
Birch-type bark
Horsechestnut
(Buckeye)

Compound leaf (7 leaflets)
Buckeye nuts rounded