European Chestnuts
(Castanea sativa)

 

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Leaves European Chestnut Leaf

Prominent, triangular teeth on leaf edges
Leaf elongate, with rounded base
Long petiole (leaf stem)
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European Stems & buds European Chestnut Stems & Buds

Stem is robust, thicker than those of the other chestnut species
Buds are larger than those of the other chestnut species
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American Bur --------European Bur
American vs European Burs

American Chestnut Burs:
A dense mass of long, slender spines
Spines are 2 to 3 cm long, 0.5 mm thick
Up to 3 nuts per bur
European Chestnut Burs:
A dense mass of long, stiff spines
Spines are 2 to 3 cm long, 0.75 mm thick
Up to 3 nuts per bur
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American - Chinese - Japanese - European - top view
American - Chinese - Japanese - European - side
American - Chinese - Japanese - European

American Chestnuts:
Nuts are relatively small, 1/2 to 1 inch in diameter
Tips of American chestnuts are pointed
Nuts are hairy over 1/3 to 2/3 of length from pointed end
Vascular bundles in a sunburst pattern on hilum end
2 to 3 nuts in each bur
European Chestnuts:

Nuts are relatively large, 1 to 2 inches in diameter
Tips of European chestnuts are pointed
Surface hair only at tip
Vascular bundles in a large star pattern on hilum end
2 to 3 nuts in each bur