Stenocactus coptonogonusStenocactus coptonogonus is a species of cactus native to the deserts of Mexico.DescriptionStenocactus coptonogonus is a small globose to subglobose in habit. Unlike other members of the genus Stenocactus it lacks the characteristic numerous wavy ribs instead having 10-15 stout, thick, triangular ribs high, or more in width. Its flowers are white with purple or violet mid-veins in diameter.DistributionStenocactus coptonongonus is found in Zacatecas, San Luis Potosí, Guanajuato, and Hidalgo areas of Mexico.