Roundleaf greenbrier (Smilax rotundifolia)

The Roundleaf greenbrier (Smilax rotundifolia) is a prominent vine found in woodlands and forests across the eastern United States and Canada. This plant produces berries that serve as a food source for a variety of animals. Birds such as wild turkeys, northern cardinals, and thrushes, as well as mammals like raccoons, opossums, and white-tailed deer, are known to consume these berries.