Astrophytum Myriostigma Tricostatum

Astrophytum Myriostigma Tricostatum is an exceptionally rare three-ribbed form of the Bishop's Cap cactus, representing one of the most unusual and sought-after variations in the genus. While most Bishop's Caps display five ribs, this tricostatum variety features only three perfectly symmetrical ribs, creating a striking triangular profile that is both elegant and architecturally unique. The characteristic white flocking covers its green body in a dense pattern of dots, giving it the signature frosted appearance that Astrophytum collectors cherish. This extreme rarity in rib count makes tricostatum specimens highly prized, as they occur far less frequently than their four or five-ribbed counterparts. A true conversation piece that produces beautiful yellow flowers when mature, this three-ribbed wonder is the crown jewel of any serious Astrophytum collection.