• Sand Dollar Cactus / Sea Urchin Cactus / Star Cactus / Star Peyote
Scientific classification
Kingdom:Plantae
(unranked):Angiosperms
(unranked):Eudicots
(unranked):Core eudicots
Order:Caryophyllales
Family:Cactaceae
Genus:Astrophytum
Species:A. asterias
‘Akabana’ is a cultivar (hybrid) plant, red flowering form.
From my collection
via Flickr https://flic.kr/p/SGsivh