I've been in the south west where these grow about 5 times in my life and every it's like seeing them for the first time. Teddy Bear Cholla or Cylindropuntia bigelovii look like something from another world, and it's even hard to think of them as cactus plants. In their extremely spiny condition they look like trees with soft spring flowers that haven't even put out their leaves yet for the summer. I imaging every landscape artist in the south west has to paint these in at least one painting.