This cactus, also known as the bishop's cap, usually has a globular, five-ribbed, stingless body covered with tiny white flakes.
In this rare variety but only 4 ribs are available!
The yellow, up to 6 cm large flowers appear several times a year.
The home of this plant is the south of the USA (Texas) and Mexico. That's why it has to stand bright in summer and frost-free in winter.
Plants about 5 cm diameter, about 4.5 cm tall