Discocactus horstii is a small cactus with a spherical, usually solitary stem with 12 to 22 prominent ribs and topped with a flat…
Discocactus is a genus of tropical cactus. The name comes from the ancient Greek "diskos" (=disc) because of its shape. Discocactus plants are endemic to southern Brazil, eastern Bolivia, and northern Paraguay. These species are in the risk of extinction in the wild.
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