Ariocarpus furfuraceus is a cactus of the genus Ariocarpus, which can be found in the state of Coahuila in northern Mexico. It is considered by some authors as synonymous with Ariocarpus retusus.
Tylecodon paniculatus is summer deciduous. The plants conserve energy by photosynthesizing through their "greenish stems" during the hot dry summer months.