@Baja_Costero - I too was looking for a thread dedicated to cactus flowers and did not find one. This thread does not seem to be all that active through.
This cactus flowered yesterday.
I was able to snap a quick picture at 6:20 am before work, thinking I might be able take more in the early afternoon. The species is supposed to be night-blooming so I moved it to the shade but the flowers still faded by the time I got home around mid-day.
At least I saw it this year. Last year, I saw the bud before work just as it was about to open and came back to a faded bloom. My parents saw it, but neither of them took a photo
Granted, they thought I saw it in the morning. It was a single bloom last year and reportedly much larger as a result. I guess this year it figured out the difference between night and day
. It probably opened at night and I happened to see it in the morning before the sun reached it.