How to Identify Ash Trees

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The following contain useful information for homeowners:

Common Problems of Ash Trees/Ash Tree Identification (PDF, 934KB)
Iowa State University Extension, January 2011
This diagnostic guide is intended to help you distinguish emerald ash borer injury from other common problems of ash trees.
Distinguishing Ash from other Common Trees (PDF, 0.50MB)
This key is intended to help you distinguish between some common deciduous landscape trees frequently confused with ash, including: elm, boxelder, mountainash, walnut and hickory.
Ash Tree Identification Bulletin (PDF, 5.01MB)
Kimberly Rebek and Mary Wilson - criteria to properly identify ash trees.