Escobaria chihuahuensis Britton & Rose Escobaria chihuahuensis Britton & Rose, Cactaceae (Britton & Rose) 4: 55. 1923 sec. Guzmán & al. 2003=Coryphantha chihuahuensis (Britton & Rose) A. Berger, Kakteen (Berger): 280. 1929 syn. sec. Guzmán & al. 2003