Horsenettle (Solanum carolinense) Horsenettle is a Southeastern native, perennial weed and a member of the nightshade or Solanaceae family. The nightshade family also includes tomatoes, peppers, eggplant, and potato. This presents a problem for home gardeners because this weed and other nightshade weeds can serve as alternate hosts for leaf spot diseases, viruses and a … Continue reading Weed of the Month