Copiapoa marginata is a species of clump-forming cactus of South America.
It is native to the Atacama Desert in northern Chile.
Description Copiapoa marginata grows to a height of up to .
The plant bears long yellow flowers in spring and summer.
Subspecies and varieties Copiapoa marginata var. bridgesii Copiapoa marginata subsp. robustispina.
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