The Aristolochiaceae are a family of flowering plants. Wild ginger is included here, among others. The Aristolochiaceae are closely related to the Piperales, and may be placed there, but are more often given their own order (Aristolochiales).
Pipevine swallowtail butterflies lay their eggs on pipevine (Aristolochia species), and the larvae dine on the plant but are not affected by the toxin, which then offers the adult butterfly protection against predators.
