| − | * [https://revistas.ucm.es/index.php/MBOT/article/view/87773 Martínez-Labarga, J. M. (2012). ''Plantes silvestres i medicinals de l'entorn mediterràneu''. Ed. Tundra] | + | * Frohne, Dietrich; Pfänder, Hans Jürgen (1984). «A Colour Atlas of Poisonous Plants: A Handbook for Pharmacists, Doctors, Toxicologists, and Biologists». Wolfe: Sheridan House. ISBN 0-7234-0839-4 |