http://www.ehow.com/how_5982557_identify-grape-vine-leaves.html
When asking for IDs and other gardening questions, it is useful for people to know what your climate is. You could be in Alaska or South Florida. Take a look at Chuck's profile information to the left of his post above, for example. It shows both his location and USDA Hardiness Zone, every time he posts. Both or either one of these bits of information are helpful and sometimes necessary for people to respond to your questions.
Hi @Montray Davis and welcome to the forums
None of the pictures are of edible grapes. The picture of a grapevine that you do have is of a mustang grape. The only edible wild grape in our part of Texas is called Muscadine and they aren't much for eating but they do make excellent wine and jelly. The only decent wild eating grape in Texas is way out in Southwest Texas and is called a Mountain Grape.Thanks for the warm welcome -- and also the tips! I will update the thread with the specified information and really appreciate your help!
Update: I guess I can't edit the original thread.
I live in Austin, Texas.
I doubt if you will be able to purchase Muscadine plants. They aren't really all that good and they are invasive. Also only certain parts of Texas are conducive for growing table and wine grapes and those areas are well to the west of Austin. There is a growing wine industry in Texas but it is specialized as to certain root stocks and soils. There is a disease called Pierces disease which decimates just about all of the good edible grapes and many of the wine grapes and this disease is prevalent over most of Texas, especially the Austin area. There are a couple of good varieties that can be purchased however that are resistant to Pierces. One is a wine grape called Black Spanish and another is a table grape called Victoria Red.. So basically what I am saying is that wild grapes in Texas suck unless you make homemade wine and jelly
I suppose you could call it a grape but that is a sub-species. Those berries will turn black and get about as big as a small marble. Eat one. I doubt if you will want another. Even the Muscadine grapes aren't worth eating. They are full of hard seeds and the skin is very thick. There is no meat in them, only juice, and they are the only wild grape in our area worth a damn, and then only for wine and jelly. When I was a kid every summer we would go out and harvest them and dad would make wine and mom would make jelly. That is all they are good for. And you have to know what your are doing to make wine out of them. Texas is not California. This is not a place to grow grapes.........................or apples either
Thank you so much for all of your help! Very helpful! I really want to grow wild grapes, so, this kind of blows that mine are not edible. 
Well, just about every nursery has them in my hometown, so, I would only imagine they do ? Otherwise, why would they sell them in Texas, right ?
