Part of the penjing collection at the National Bonsai and Penjing Museum, this trident maple, Acer buergerianum, has its roots growing over a rock and its foliage and stems trimmed in the shape of a dragon.
USDA photo by Peggy Greb. Image Number K10474-1.
From: http://www.ars.usda.gov/is/graphics/photos/jun03/k10474-1.htm
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