Thanks! I should've done a search on the database first. Interestingly, our database treats the two as the same thing pretty much. If you look for caralluma hesperidum, you'll see it says orbea descaiseana subsp. hesperidum. I must've stated that I have one a long time ago, but I wasn't certain because it hadn't bloomed.
Btw if you like it, I think it's worth getting. They break apart very easily but root just as easily. They don't seem finicky at all in terms of water and sun either. Get one!