Dodder Strangling Host (IMAGE) Penn State Caption The parasitic plant dodder taps into a host plant's supply of water and nutrients, growing into its host's vascular tissue. Credit Joel McNeal, Kennesaw State University Usage Restrictions Credit must be provided alongside image. 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.