Montanucci, Richard R., and Klaus-Peter Kleszewski. “Nomenclature and Redescription of the Jaumave Valley (Mexico) Populations of Astrophytum Myriostigma (Cactaceae)”. Journal of the Botanical Research Institute of Texas 13, no. 1 (July 23, 2019): 63–69. Accessed March 29, 2024. https://journals.brit.org/jbrit/article/view/826.