I THINK it's an ornamental of some kind but for all I know it could be edible! My son brought it home for me to root, claiming that the people he got it from said it was rare and rarely bloomed.

It's pretty odd-looking to me, with the leaves sprouting out of the side of what looks like a primary leaf.

Let me know if you know what this is!

The Fruitnut

It appears to be in the family that Christmas cacti are also in, so this is a good start. I'll do some online digging to see if I can zero in on the one out of hundreds of Epiphyllums it might be.

I'll need to check to see how critical the leaf presentation is to the plant identification. If it never deviates, I don't think it's either a Christmas cactus or a Night Blooming Cereus -- the leaf-growth looks to be very different for both of them than the leaves in my picture. But of course, I may not have a complete idea about the plant habit or it might depend more on the flower than the leaf-structure.

Your mystery cutting is definitely Queen of the Night, Selenecereus grandiflorus. I know this plant very well. I've had the same one since my grandmother died in 1972, a real family heirloom. Many of my relatives have pieces of the original.

It isn't particular shy about blooming in the late summer, and I've had as many as a dozen flowers open the same evening. Flowers are spectacular and smell great, too. I actually collected and froze them in blocks of distilled water ice to use as party centerpieces one time, which was really cool.

I'm willing for it to be the Selenecereus grandiflora, but plants of that name come in several genera. Take a look at this, though of course Wikipedia is not the final word on the subject!

If you can find and post a picture and ID of the plant with the same leaf structure as the picture I posted, that would satisfy me. (That's what's throwing me off.)

The flowers are really beautiful, aren't they? There's a very romantic statement made in the link above:

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In Bride of the Water God by Yun Mi-kyung, the nightblooming cereus is referred to as the "Loneliness of the Night." The flowers are described as being paired, so if one flower is plucked, another flower will die somewhere else. Therefore, they are also given the nickname "short-lived love."