A problem. This is not normal L. salignum, but an intermediate with L. flexuosum. This form is found from the actual distribution of pure flexuosum, along the valley floor to Goudini and south to here, the southern tip of the Brandvlei Dam valley.
It is part of the population of salignum, but where it occurs the plants are far taller, slender and smaller heads than the typical salignum. I suspect that it is a hybrid population, but if so, then the area of the hybrid is about 5-10 times that of pure L. flexuosum.