Loza-Cornejo, Sofía, Lauro López-Mata, and Teresa Terrazas. “Morphological Seed Traits and Germination of Six Species of Pachycereeae (Cactaceae)”. Journal of the Professional Association for Cactus Development 10 (July 19, 2008): 71–84. Accessed October 22, 2025. https://jpacd.org/jpacd/article/view/121.