Pepper-vine, Ampelopsis arborea, and raccoon-grape, A. cordata, are woody vines in the grape family, although at least one of them (the former) has toxic properties. They are easily distinguished from one another by the leaves alone, where A. cordata has cordate leaves while A. arborea has pinnately compound leaves. I recently identified a pepper-vine for a nursery that had put a trellis up for one they had found growing as a volunteer. This is also the toxic one of the two as one person there had previously found out when a berry was tasted resulting in a numb ‘tumb’ as well as some tingling and itching around the mouth.