it's not poison anything. but I'm thinking not a dogwood sapling either.

I agree that it's not dogwood or PI. It could be an ash sapling. ncbuckeyefan, do you know if the leaves are opposite each other along that main branch? That and the pinnately-compound leaves are ID features of ash trees.

Ash.

Thank you everyone. My hopes were up for dogwood. Anyone know what a dogwood sapling looks like? I must have them here

ncbuckeyefan, here are photos and info for 8 varieties of dogwood which meet the criteria for "tree," and which are recommended as something which you might like in your garden. Just click on everything which begins with "Cornus."
http://plants.ces.ncsu.edu/plants/category/trees/6/?

And here are 5 dogwood "shrubs:"
http://plants.ces.ncsu.edu/plants/category/shrubs/3/?
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I am not happy with NCSU, which has messed up what used to be a much more accessible database, and seems to have deleted a lot of the photos and info which had been included. (Maybe some of the info is new or updated; I don't know -- but these are the same url's which have been in my bookmarks for at least 4 or 5 years now.)

The original info came from USDA; many state universities (or other state bureaucracies) had access to the same USDA info and produced databases tailored for their areas; the ones I've seen mostly used the same format, so it was obvious they were all based on the same source.

Or maybe it was USDA who messed it up rather than NC State.

Anyway, what I should add is that at best you've got some photos of various dogwood leaves, and at the least there are names of some of the many different cultivated varieties.

The ash has compound leaves, dogwoods have simple leaves. Both plants have leaves with opposite arrangements. So you need to look for plants with opposite arrangement but simple leaves.

Here is a link that might be useful: leaves

Maybe check Fraxinus.

Thank you. More research to do. I have a LOT of mature dogwoods here. If I have any smaller ones, I'd like to move them. I'll keep searching and appreciate the help