Horsenettle (Solanum carolinense). Horsenettle, is not a true nettle, but a member of the Nightshade family (Solanaceae). Other members of the Nightshade family that you are familiar with are Tomato, Potato, Eggplant, Bell Pepper, and Petunia. It is a perennial herbaceous plant, native to the southeastern United States. It can grow to 2 or 3…