Del Guacchio, Emanuele, Salvatore Cambria, and Salvatore Brullo. “Typification of the Name Ephedra nebrodensis (Ephedraceae)”. Phytotaxa 496, no. 1 (April 9, 2021): 90–92. Accessed April 18, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.496.1.5.