Opuntia pailana Opuntia pailana Opuntia pailana is a species of the genus "Opuntia" in the family Cactaceae. The name "pailana" comes from the sierra de la Paila in the state of Coahuila Mexico where it was discovered. The first description was published by Wilhelm Weingart in 1929 in the book "Monatsschrift der Deutschen Kakteen-Gesellschaft". Band 1, Nummer 9, 1929, S. 167–169. As most of the species of the genus Opuntia, "Opuntia pailana" is a shruby plant with cladodes (leaves racket-shaped) up to one meter high. The cladods are in color blue-green or when getting older green-yellow, 10 to 14 centimeters long and
Opuntia bentonii (less inclinded to narrow at the base). "O. bentonii" plants have fewer spines than "O. lindheimeri", zero to 3 (often only 1 or 2). One important difference is that the stigmas of "O. bentonii" flowers are yellow and not green as in "O. lindheimeri." Another individual feature of "O. bentonii" is that the veins are often visible between areoles. Opuntia bentonii Opuntia bentonii was proposed by some botanists to be a synonym of "Opuntia stricta". However, "O. bentonii", which grows in Texas, is separate and distinct from "O. stricta." "O. bentonii" was clearly described by Griffiths in 1911. Along with