Another wonderful cactus flower. I suppose we should know the latin names for all these things. Had cactus originated in England like I was, I am sure they would have been given wonderful folksy names like “Old Man’s Floggle” or “Queen Mary’s Gobbet” or something we would at least remember. What kind of name is Astrophytum prismaticum? (Now I discover that after being a smartass about it, this cactus is acutally commonly known as the Bishop’s Cap Cactus.)