This cactus flower is there elevation approximately 10 feet. It’s in my front yard. The specimen originated and South Mountain in Phoenix Arizona many many years ago. A construction worker salvaged it from destruction and brought it to his great aunt’s house approximately 20 miles north of the mountain where it stood for another 20 years before the elderly lady donated it to my yard. We transported it about 35 miles from North Phoenix to Gilbert Arizona around 1999.