Pelecyphora vivipara
PlantsFamily: Cactaceae · Genus: Pelecyphora

Bentham-Moxon Trust.; Curtis, William; Curtis's botanical magazine dedications, 1827-1927 : portraits and biographical notes.; Royal Botanic Gardens, Kew.; Stanley Smith Horticultural Trust. · public_domain
About
Pelecyphora vivipara is a species of cactus known by several common names, including spinystar, viviparous foxtail cactus, pincushion cactus and ball cactus. It is native to North America, where certain varieties can be found from Mexico to Canada. Most of these varieties are limited to the Mojave and Sonoran Deserts. The species epithet "vivipara" was likely a reference to the plants tendency to produce offsets, or "pups", which is known as vivipary.
Summary from Wikipedia
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Growing details and traits for Pelecyphora vivipara in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.