Oklahoma Tree

[pegnjim]

We spotted this tree in Northeastern Oklahoma. As there were quite a few of them I am assuming they must be some sort of native and not transplanted to the location. Any help in identifying it would be appreciated.

[Silver surfer]

It is an Ash tree.
Probably an Oregon ash. Fraxinus latifolia.
Please check the underside of the leaves, if I am correct they should be white, with soft woolly hairs.

Google Image Result for http://upload.wikimedia.org/wikipedia/commons/8/8b/Fraxinus_latifolia_JPG1Fe.jpg

http://www.google.co.uk/images?q=fra...N&hl=en&tab=wi