`` Aristolochia chilensis '' , like the related `` Aristolochia bridgesii '' , is a larval food source for the gold rim swallowtail butterfly , `` Battus polydamas '' . `` Aristolochia chilensis '' , like the related `` Aristolochia bridgesii '' , is a larval food source for the gold rim swallowtail butterfly , `` Battus polydamas '' .