I found a stash of old Berkeley Succulent photos. I don’t know how old they are, but they’re not posted on the blog, so maybe they were posted on my previous blog 5 years ago or more. So they’re new to you. I checked the archives, and they are from before 2005.
Cereus hildmannianus, probably subsp. uruguayanus. Possibly C. repandus.
This particular plant I drive by every day on the way to the nursery, and I can tell you that this photo is a record of the plant at it’s prime. It’s no longer at it’s prime. In fact, it’s now dead. You can still drive by and see the wasted corpse of the plant if you want, but it’s not as pretty as this when it was thriving.