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 / No Swelling / One vein / Glandless / Pittosporum / Hairless

Are the leaves linear or oval?

Leaves linear, 1/4" wide or less

Willow Pittosporum (Pittosporum angustifolium)

Leaves oval, spear-shaped or diamond shaped

Leaves 1/2″ wide or greater

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

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