POTD: Cristate

Organ Pipe Cactus National Monument, Arizona

Cristate or crown shaped growths on cacti are uncommon but not rare. I’ve seen them on saguaro cacti before where they always seem to grow at the top of a cactus (making crown shaped a very apt description). On organ pipe cacti though, cristate growth appears at the bottom rather than the top of the plant, at least in the 2-3 cacti I saw with it.