This one might be Willow Oak (Quercus phellos). It has distinct leaves, hopefully we'll be able to solve this one.







Spring 2010 new growth

Christine, is there a tiny bristle like a hair at the tip of the leaves? This site says there will be in Willow Oak.
http://www.fcps.edu/islandcree...

Here are some other links for you to check out:
http://plants.usda.gov/factshe...
http://www.missouribotanicalga...
http://www.na.fs.fed.us/pubs/s...
http://dendro.cnre.vt.edu/dend...

Hi Ann,

Thanks for the info. I checked and it does appear that the leaves have a hair off the tip. My camera battery died so I'm recharging right now to get a picture.

That's good Christine.
I was having trouble reconciling the bark between the photos of the reference material and your photos but bark is relative - very much so - to the age of the tree excepting when certain species have very distinctive bark. Your tree seems to be quite old. I kept searching & found this which matches your bark.
http://www.illinoiswildflowers...
Also the 2nd bark photo in this link:
http://www.rnr.lsu.edu/plantid...


And along my way I ran across some links that may help you as far as ID'ing your other oaks:
http://bioimages.vanderbilt.ed...

There are some links to other oaks in the middle of this page
http://mdc.mo.gov/discover-nat...

This is about the Willow oak but it shows some interesting info. on naturally occuring inter species hybrids:
http://www.carolinanature.com/...

Thank you for the great info Ann. I'll check it out. This is an older tree so hopefully we can get a positive ID.

Here's a leaf picture showing the tiny bristles at the tip of th leaf.



Another picture of the leaves, the top leaf showing the top side of the leaf, and the bottom leaf showing the underside.



I think this should confirm the name of this tree as Quercus phellos. I will mark this one as solved. If there is a dispute, I'll un-solve it.

Ann, thank you for your help.

You're welcome!

I think this was the easiest of your oaks though.