Potato Relative (IMAGE) Oregon State University Caption Relatives of the cultivated potato, like this plant, Solanum demissum, have co-evolved with the the pathogen that caused the Irish potato famine. Credit (Photo by Niklaus Grunwald, courtesy of Oregon State University) 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.