Urban Tree Key
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Urban Tree Key / Leaves simple / Leaves alternate / Leaves smooth / Not Bottlebrush or Acacia / >3/4″ wide / No Latex / Not lemon-scented /
Without Dots / Tip rounded / Not heart-shaped / Not hairy / Not Rust colored / Smooth / Hairless

Leaf stalk swollen at tip or without swelling?

Leaf stalk swollen at tip

Leaves variously lobed
Bottle Trees (Brachychiton spp.)

Leaf stalk without swelling

Leaf margins smooth or wavy

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

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