Brilliant markings, tiny plant. Flower 3mm across. No leaves or dry rests visible under single stem. I have NO idea which Pelargonium it is. Previously found in 2017 by Pel. specialist as well as near Heidelberg, West Prov.
Sandstone soils - summer flowering
I am really not sure of this ID based on distribution. But the leaves look exactly like Trit water to me...