Pecan (Carya illinoinensis) (image) American Journal of Botany Caption Pecan (Carya illinoinensis) growing in the Missouri River floodplains near Hermann, Missouri. Pecan is one of the few native North American species which has entered the domestication process. Credit Image courtesy of Allison Miller, Saint Louis University. Usage Restrictions Appropriate caption and credit required 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.