American hog peanut

Here's the description I copied from a Google search:

American hog-peanut (Amphicarpaea bracteata) is a native North American vine in the bean family (Fabaceae) known for its twining stems, three-leaflet leaves, and unique flowers that can be pollinated above or below ground, producing edible seeds in pods that resemble peanuts. It's a valuable nitrogen-fixing plant that thrives in moist woodlands, thickets, and along roadsides, providing food and habitat for wildlife.