Thelocactus rinconensis ssp. nidulans
Sierra Paila, Coahuila
Photo: A. Mosco
enlarge

Thelocactus rinconensis ssp. nidulans
Sierra Paila, Coahuila
Photo: E. Nodari
enlarge

Thelocactus rinconensis ssp. nidulans
La Paloma, Coahuila
Photo: P. Pavlicek
enlarge

Thelocactus rinconensis ssp. nidulans
Sierra Paila, Coahuila
Photo: A. Mosco
enlarge

Thelocactus rinconensis ssp. nidulans
La Paloma, Coahuila
Photo: P. Pavlicek
enlarge