This member of the Cactaceae family was
first described by Britt and Rose in 1922. It is from Mexico, where it
grows in grit on the hill-sides. It gets lots of water in two months
and lots of sun all year. It will grow to 40 centimetres in diameter and
one meter high. The flowers are orange/yellow, and seeds are the only
way of reproducing. I found Rikke´s in Roskilde 2001.