This is a fairly common caudiciform plant, Cyphostemma juttae. It makes a nice fat base, and gets green leaves in summer, then goes dormant for winter.
I don't remember where I got this one, either, unfortunately. This one died shortly after we moved to TN. It started to grow a little arm out of the side of it, and I think I got excited and overwatered it. Had it in quite a lot of shade, too, which probably didn't help.
Forgot to mention the great planting job in the last photo. I can never get my plants directly in the middle of the pot, but that plant was extra- bad!
I also forgot to mention that one of my plants did flower, except I missed it- I did see a little red berry on one of the plants, but when I went to pick it, it was gone- some animal or bird had gotten it, or it fell off somewhere.
I still have these two plants.
The plants have a very small root system, and the caudex part gets very heavy. They often topple out of their pots. You can see one is in 2 pots so it stays stabilized. This is an old photo, the plants are still in clay pots but I have to lean them against something so they don't tip over or fall out of their pots.
I've seen photos of these as small trees, I think I'll plant one of mine in a larger pot with better soil and see what it does.
I have a little bitty one. It started to develop a rotten spot. I scraped all the rot out and let it dry out of soil. Surprise surprise it survived. You can see the scar. It hasn't grown much in the past year since I rescued it but maybe it would do better in a bigger pot and more regular water in the summer.
The plant to the left? It's a Bursera microphylla. I don't have a photo of it that I can find, will try to take one... it's very hard to get a photo of it because it's tall and skinny. A wonderful plant, one of our favorites. I let my husband enter it in the local flower show and it won second place in foliage plants.
It gets tiny little leaves.
I wasn't expecting much for our local flower show, we live in a very small town!
But, someone brought in an enormous, I mean ENORMOUs! Stapelia gigantea that was in bloom, it won first prize. I was admiring it and trying to get some photos when the lady was taking it home- some pieces fell off and I thought she'd offer them to me, but no, sniff shiff!