Three related genera from Africa.
Columnar cacti are not a closely related set of genera, but a lumping together of all the cacti that are much longer than they are around.
A genus of at least 28 species of small clumping leaf succulents from South Africa.
A small (but growing) genus of small plants from Northeastern and Central Mexico.
This month both the Cactus and Succulents categories are Variegates.
Three cactus genera that are not so common in collections.