I've had this plant for many years and don't really remember where I got it from. It rarely grows much beyond what you see in the photo and, if it does, that it seems to die off and go back to that. I'm subtropical. Over the years, I've moved to various positions and repotted it but nothing seems to make much difference. It's driving me nuts. I just wish it would do something! lol... and I don't mean die!!! thanks Annie
Can You ID a Plant
Certified GKH Gardening Expert
This appears to be a variety of Euphorbia.
I would suggest using a cactus mix potting soil and make sure you do not overwater.
The container that you have looks to be a bit large for the plant. The root structure is quite small and a container that is too large can lead to root rot.
Here are some links with more information.