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Extension Forestry
Identification of Common Trees of Iowa
An Interactive Key
This interactive key was
developed to help identify the
most common trees in Iowa. The key is based on vegetative
characteristics such as leaves, fruits, and bark. It is not a complete
key. It does not include all trees grown in Iowa.
The proper use of the key may be compared to the use of road signs
where a
choice of two directions must be made at each intersection. One must
always chose the best route which matches the characteristics of the
tree. If at the end, the solution does not match the specimen, one can
usually
identify a point in the process where the choice of direction was in
doubt. Many times the steps can be retraced to this point and the
sample
can be identified.
ISU
Forestry Extension - ISU
Extension
Acknowledgements: Some of the pictures on these web
pages are from Conservation Trees and Shrubs Pocket Guide,
United
States Department of Agriculture, Soil Conservation Service.
Paul
Wray, Department of Natural Resource and Ecology and Management,
Mark Vitosh, District Forester, Iowa DNR, and Jeff
Iles from the Horticulture Department provided
the content for these web pages. Tom Quinn was the programmer/designer.
Contact:
Paul
Wray, ISU Extension Forester
Last Update: August, 2004