Aristolochia wankeana (IMAGE) Technische Universität Dresden Caption The Aristolochia wankeana has an unusual flower shape characteristic for pipevines. Credit Sébastien Sant Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.