Martínez-González, César Ramiro, José De Jesús Morales-Sandoval, César Adrián González-Martínez, Jaime Jiménez-Ramírez, and Clemente Gallegos-Vázquez. “Opuntia tehuacana and O. olmeca (Cactaceae, Opuntioideae) Are to Be Considered As Ascribed to a Single Species: Morphological and Molecular Evidences”. Phytotaxa 479, no. 2 (January 8, 2021): 160–172. Accessed December 6, 2025. https://phytotaxa.mapress.com/pt/article/view/phytotaxa.479.2.2.