are known from the Early and Late Tertiary of North America and the Late Tertiary of Abkhazia, Ukrainia and Poland. Fossil leaf remains of †Aristolochia austriaca have been described from Late Miocene sediments of the Pellendorf site at the Vienna Basin in Austria. †A. austriaca is most similar to the extant Mediterranean species A. rotunda and A. baetica. References External links International Agency for Research on Cancer evaluation Dietary Supplements: Aristolochic Acid, U.S. Food and Drug Administration alerts Health Canada advising not to use products labelled to contain Aristolochia Aristolochiaceae in BoDD – Botanical Dermatology Database Magnoliid families