This is one of a few hundred that were in bloom at a friend's home in Riverside. When I see cacti in bloom, I often think about the 1969 movie Cactus Flower of the same name starring Goldie Hawn, Ingrid Bergman and Walter Matthau. It is a romantic comedy with everyone ending up with the "right" partner in the end. Hard to believe that was fifty years ago. But love and comedy were much more innocent then.