Melocactus conoideus Mesemb This cultivar is like the

This cultivar is like the normal Sea Urchin cactus but with ribs that look like they fold under each other

but they turn red again in better light

They aren't as large and thick as A

This grape relative is an interesting caudiciform with long stiff stems with fat bases that get fatter over time

Melocactus conoideus Mesemb This cultivar is like theMelocactus conoideus A nice cephallium forming species. When young (as they are now) they seem like a regular plant but once it gets big enough the main plant stops growing but produces a large hairy inflorescence that continues to grow for the rest of the life of the plant. Eventually the inflorescence can be taller than the plant itself. This is more tropical than most succulents so it doesn't like cold weather and it also doesn't like to fully dry