Sulcorebutia arenacea     5/12/22
I've been keeping this species for more than 20 years. The interesting thing is that this is the first success I had in crossing an S. arenacea female with a male Hamatocactus setispinus. The resulting seeds gave this plant (actually, about 25 plants), which has no visible trace of Hamatocactus setispinus in its appearance. I'll explain it all in more detail probably sometime next year. (17/56)