These are a generally solitary barrel from Durango, although we have seen some mature specimens forming a small cluster. My copy of Anderson’s The Cactus Family tells me that this plant is more properly called Ferocactus pilosus. Why didn’t anyone tell me?!?!@ On the other hand some have been known to call this one Ferocactus pringlei. So many names!
Now I am embarrassed.
Do you know why they call it a Fire Barrel? I can only guess.