CASTELLANOS, A.; LELONG, H. V. ?Opuntia weberi? Speg. var. ?Dispar? Castell. et Lelong. Lilloa, [S. l.], v. 10, p. 469–470, 1944. Disponível em: http://www.lillo.org.ar/respaldos/journals-202108/journals/index.php/lilloa/article/view/726. Acesso em: 5 jul. 2025.