Synonyms for White Horse Nettle (same or very similar meaning)
WordNet sense 1 (weedy nightshade with silvery foliage and violet or blue or white flowers; roundish berry widely used to curdle milk; central United States to South America):
trompillo, prairie berry, purple nightshade, silverleaf nightshade, silver-leaved nettle, silver-leaved nightshade, Solanum elaeagnifoliumFrom the ODE community, based on WordNetadd/edit