Street Tree ID

Broadleaf/Evergreen

Opposite/Whorled/Alternate

Simple/Compound

Lobed/Unlobed

Sinus

Maples

Sugar Maple
Acer saccharum

Norway Maple
Acer platanoides

Silver Maple
Acer saccharinum

Red Maple
Acer rubrum

Japanese Tree Lilac
Syringa reticulata

Palmate/Pinnate

Lobed/Unlobed

Ash
Fraxinus spp.

Boxelder
Acer negundo

Horsechestnut
Aesculus hippocastanum

Catalpa
Catalpa speciosa

Simple/Compound

Lobed/Unlobed

Pinnately/Palmately

Oaks

Red Oak
Quercus rubra

Pin Oak
Quercus palustris

Sycamore
Platanus x acerifolia

Teeth Large/Teeth Fine

Large Teeth

Birch
Betula spp.

Hawthorn
Crataegus spp.

Elm
Ulmus spp.

Fine Teeth

Linden
Tilia spp.

Cherry
Prunus spp.

Crabapple
Malue spp.

Pear
Pyrus spp.

Leaflet

Black Walnut
Juglans nigra

Honeylocust
Gleditsia triacanthos

Tree of Heaven
Ailianthus altisima

Evergreen needles

Pines

Austrian Pine
Pinus nigra

White Pine
Pinus strobus

Spruce
Picea spp.

Dichotomous Key
Divide into two

Acknowledgements
Presentation and photos by David Swaciak
Parts of the key and species descriptions based on “Tree ID Guide for Common Urban Trees in NY State”, available from the Urban Horticulture Institute, Cornell University.
http://www.hort.cornell.edu/
department/faculty/bassuk/
uhi/index.html