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Urban Tree Key / Pinnately compound / Leaves opposite / Leaves pinnate/ Leaflets ≥ 7 / Ashes / Stalked / Flowers green

Are the leaf undersides hairy or not?

Leaf undersides hairy, especially on rachis (central axis)

Green Ash (Fraxinus pennsylvanica)

Leaf underside hairless, or with only stiff hairs bordering leaf veins

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

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