Foley, Michael J.Y. “Orobanchaceae in the ‘Flora iberica’ Area: New Taxa, Excluded Taxa, and Typification”. Anales del Jardín Botánico de Madrid 58, no. 2 (December 30, 2000): 223–233. Accessed April 25, 2024. https://rjb.revistas.csic.es/index.php/rjb/article/view/153.