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

Acer rubrum

Red Maple

Acer pseudoplatanus

Sycamore Maple

Leaves 2″ to 4″ wide, lobes sharply toothed, pointed at tip ……… Acer rubrum

Leaves 3″ to 7″ wide, lobes with round teeth, rounded at tip ……… Acer pseudoplatanus

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

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