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This was part of the private collection of cacti and succulents at Manor Nursery, Angmering, West Sussex. The collection was started in 1948. The nursery is now gone. The collection has been dispersed to various new locations.
Common names include Button Cactus, Ping-pong Ball Cactus, Common Button Cactus.
It is found in the USA - from Arizona (Santa Cruz and Cochise County) to New Mexico to western Texas. It also occurs in Mexico (northern Chihuahua).
It is widespread in desert grasslands and woodlands from 500 to 1800 metres in elevation. It grows on crevices, coarse gravel, cliffs, sedimentary (rarely igneous) substrates on hills and ridges in the Chihuahuan Desert; These cacti are normally found in small clusters because the seeds fall nearby. Also wind, rain, and wildlife help with the dispersal of seeds.
Although regarded as a choice and difficult plant, in cultivation it is relatively easy. It needs a particularly well-draining soil mix (rot prone). Water sparingly.