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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
Chinese Chestnut Burs
— A sparse mass of short, thick spines
— Spines are 1 to 2 cm long, 1 mm thick
— Up to 3 nuts per bur
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Photos
©Copyright
2004 Ga Tech Forestry Department and courtesyof: Michael Aust, John
Bailey, Claude L. Brown, Bruce Bongarten, Susan D. Day, Edward C.
Jensen, Richard E. Kreh, Larry H. McCormick, Alex S. Niemiera, John
A. Peterson, Oana Popescu, John R. Seiler, David W. Smith, Kim C.
Steiner, James E. Ward, Rodney E. Will, Shephard M. Zedaker |
American Nuts
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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
Chinese Nuts
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Nuts are relatively large, 3/4 to 2 inches in diameter
— Tips of Chinese chestnuts are rounded
— Only the tips of the nuts are hairy |
Hilum ends of chestnuts
American chestnut ends have a clearly-defined starfish pattern with
a small center and long radial arms. On Chinese chestnuts, the
center is larger and more diffuse.
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