Thelocactus hexaedrophorus

Description

This is a single stemmed plant, in nature the blue gray to gray green body, sometimes patterned with red, is depressed to rounded, about 3-4 inches tall by 6 inches across. The tubercles are large and rounded, the multicolored spines are red and white, and the large white flowers appear repeatedly throughout the summer. It is a very tough Chihuahuan Desert plant that does well either in the ground or in a pot in the southwestern U.S., and is a great potted plant in other parts of the country. Some cactus taxonomists list Thelocactus hexaedrophorus subsp. lloydii based on delta-shaped tubercles versus rounded ones and magenta flowers versus the normally white flowers.