#botanical morphology

• Aristolochiaceous — A designation assigned to a plant belonging to the Aristolochiaceae family or, in the plural, to the family itself; a family of angiospermous dicotyledonous plants, generally perennial herbs or woody vines, distributed mainly in tropical and temperate regions. These plants feature entire, often cordate leaves and bisexual flowers with a bizarre tubular structure adapted for insect pollination, with many species containing dangerous toxic substances.