Posted by
Baja_Costero (Baja California - Zone 11b) on Sep 1, 2019 3:24 PM concerning plant:
Small, globose, grey-green cactus from central Nuevo León in northern Mexico. Solitary. 10-15 ribs, 3 spines, magenta flowers. Slow growing in cultivation.
The two species in this genus are small, low, dull-colored cacti (in nature) with sharply marked ribs and depressed, wooly centers. They are rock dwellers and pioneer species, growing on limestone or gypsum substrates. Their habitat is the western slopes of the Sierra Madre Oriental in central Nuevo León. A third species (valdezii) was recently described (in 2013) but is not currently accepted by online taxonomic authorities.
