Leuchtenbergia principis *Larger Plant* Crassulaceae This is the variety that

This is the variety that has yellow variegation (there is a white one too)

The plant itself seems lighter green than most Echidnopsis

It may retain its leaves in the winter if grown indoors

semi-cold hardy columnar cactus covered in brush like white spines

Leuchtenbergia principis *Larger Plant* Crassulaceae This is the variety thatLeuchtenbergia principis One of the strangest looking of all cacti! It has the longest tubercles of any cactus (rivaled only by Astrophytum caput medusae)! They are the long arms that make up this plant. In a normal cactus they are just the small bumps that the spines are born on. The spines in this cactus are long and look fierce, but are actually quite thin and bendable. You don't have to worry about poking yourself on them. Takes normal cactus