Capsella rubella with Outcrossing Species (image) University of Toronto Share Print E-Mail Caption At left: This is Capsella rubella, red shepherd's purse, a selfing derivative species. At right: This is Capsella grandiflora, an outcrossing species. (Photo: Gavin Douglas and Young Wha Lee) Credit Photo: Gavin Douglas and Young Wha Lee Usage Restrictions None Share Print E-Mail 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.