Wild muscadine grapes
Vitis rotundifolia, commonly known as muscadine, is species of grape native to the southeastern United States.
Transcript (edited for clarity):
Hi, this is Rudy Mancke from USC for NatureNotes.
Muscadines are almost ripe. I can't wait. They've been green for a long, long time.
I'm one of those people who loves to take advantage of natural items, and so I eat them and spit out seed into my hand and do what nature would have me do. I walk a little distance away from the vine and throw the seed somewhere else. And that causes the muscadine vines to expand.
Vitis rotundifolia is the scientific name. Purple would be muscadine. Yellow would be scuppernong.