I have no experience with this species. But I have my doubts about a desert species rooting in water. Just sounds so wrong to me. There are no logic in a desert species developing an ability to strike roots in water. Just makes no sense to me.
That us why I am hesitating. It just doesn't sound right. The directions said it might take a year, and that doesn't sound right, either.
Quite a few sites mentioned cuttings, and they said to let the cutting dry out, with specific directions that agreed, mostly. Maybe I will try making a cutting out of the entire top, or maybe three.
I'll report on what works or doesn't work.