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Urban Tree Key / Leaves simple / Opposite or Whorled / Opposite / <6″ wide / Palmately veined / Maples / Simple / Hairy / >3″ wide

Is the middle lobe of the leaves wider near the middle or near the base?

Middle lobe dog most leaves wider near the middle

Leaf underside bright white
Silver Maple (Acer saccharinum)

Middle lobe of most leaves widest at the base

Leaf underside light gray, grayish, white, or bluish gray

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

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