San pedro do not grow wild in the US deserts... If they are, its because they were transplanted as cultivars. San Pedro is cultivated by humans as an ornamental here. You can find them growing commonly in southern cali in people's lawns. I know San Deigo has a lot of them. LOL @ san pedro hunting in the AZ desert.
this is how it starts psycedlicgirl only 2 cacti. before you know it you will have 20 bridgesii, +30 pedro variants, macrogonus, etc, etc.
I have lost my camera charger that is why I havent uploaded any pics. I am going to try to take some with my phone later today. I got to go to work. I love my non-psychedelic and psychedelic cacti!! My san pedro is finally growing my mom actually broke it when I left it behind at her house, bc our car was too full, and then she brought it down, didnt pack it right, so it broke int he car on the way down to my new place. but the little baby is still growing that is on the side.