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Posts Tagged ‘Blue’

March 8th, 2012 - 2:07 pm § in Tours

14 Blue Trail Purdue Tree Tour

Japanese Zelkova—Zelkova serrata An Asian cousin to our native elm, this tree has gained popularity in the U.S. because of its resistance to Dutch elm disease and its tolerance of urban conditions. In youth, the bark is a smooth gray with numerous lenticels. As the tree matures, the bark becomes s[...]