Originally, this post was just supposed to be about the Huernia schneideriana, because I saw that it had produced some buds on 18 July.
And they opened on 23 July, the first time I'd seen the flowers in-person, which was neat.
But then two days after that, on the 25th, I happened to see that the Stapelia variegata had produced a flower without me even noticing the bud.
And two days after that, on 27 July, I saw that the Huernia zebrina had also produced a bunch of buds, one of which had fully opened by that afternoon.
So instead of a post about a single stapeliad flower, you get a post about three of them. And they cover a range of color patterns: solid, dots, stripes. So it's clearly a good thing that I couldn't write this post when I first thought of it.
As a side note: the flowering of the H. schneideriana means that all four of my stapeliads have now bloomed, so I can compare their smells. S. variegata is definitely, absolutely, no question about it, the worst-smelling. I haven't been able to smell anything, good or bad, from either of the Huernias, even checking multiple times over the course of a day. S. gigantea definitely has an unpleasant smell, but it's not so intense as to be particularly bothersome, if it's only one flower at a time. Putting the S. variegata next to the door we use all the time was a mistake, though.