Looking like it is right out of "The Little Shop of Horrors," here is the flower of my cereus cactus. The bud comes off the side of a leaf structure. The flower will open at night and gives a perfumy air. A gift of a rooted cutting came with the advice that I would wait 7 years before seeing a bloom. That was true and since the first bloom it's been a challenge to catch one before it's been and gone. It's such a neat plant and I've heard stories that some plan little parties around the blooming. It did not bloom last night, so we'll be checking again tonight.