This is from a huge vine that I pulled down off of a tree. I know that we have Muskadine grapes on other parts of our property and the leaves kind of look the same to me.

How can I tell if it is also a grape? If it is, should I try to prop it up somewhere and allow it to grow? It has a huge long vine, probably 25 feet long that I pulled down from the tree. Should I try to bury the length of the vine and only have the parts above ground where there are branches growing out?