Uebelmannia pectinifera Mesemb but it can do it

but it can do it for no clear reason

The plant is green with white aeroles and stubby spines

The plant itself seems lighter green than most Echidnopsis

They are shown  growing in a 2

Ferocactus macrodiscus A smaller barrel cactus from Mexico that usually grows wider than tall

Uebelmannia pectinifera Mesemb but it can do itUebelmannia pectinifera An uncommon attractive globular cactus purple to purple green skin and bristly spines in rows. Stays small and will clump slowly in time. Requires general succulent care for the most part but likes warmer temperatures than the average cactus (only an issue for outdoor growers). Protect from frost. You will receive a plant shown in the last image. Plant shown in a 3. 5" pot. Plants are on their own roots. Important Shipping