Urban Tree Key
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Urban Tree Key / Leaves simple / Opposite or Whorled / Opposite / <6″ wide / Leaves green / Leaves stalked / >1/2″ wide

Leaf undersides white and woolly or green?

Leaf undersides white and wooly

Leaf undersides green, light green or gray

Occasionally hairy, but not white and woolly

Urban Forest Ecosystems Institute
NRES Department
California Polytechnic State University
San Luis Obispo, CA 93407

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