
Thelocactus bicolor
by Massimiliano Mazzinghi

Thelocactus macdowellii
by David Traish

Thelocactus macdowellii
by David Traish

Thelocactus rinconensis subsp. phymatothele
by David Traish

Thelocactus rinconensis subsp. phymatothele
by David Traish

Thelocactus saussieri
by David Traish