Urban Tree Key
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Urban Tree Key / Leaves simple / Leaves alternate / Margin wavy / Palmately veined / No sap / Lobed / >3.5″ wide / Not swollen / Leaves unscented / Bottle Tree / Hairless

Are the leaves >4″ wide or <3.5″ wide?

Most leaves greater than 4" wide

Flowers scarlet red
Illawarra flame tree (Brachychiton acerifolius)

Most leaves less than 3.5" wide

Flowers white or cream-colored, and spotted

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

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