The weird and the white

I am hoping somebody can tell me what these strange extra-terrestrial looking clumps are, congregating under the graceful weeping branches of the Horsetail She-oak, Casuarina equisetifolia.

With that grey-green colour, from afar I thought they may have been immature Flannel Flower (Actinotus helianthi) plants, not yet leggy and stretching skyward.  But hardly likely…

Yet a few weeks later, those weird clumps on the stony headland, where little else grew, had bloomed… indisputably with Flannel Flowers, though small and still unlike the usual ones, now also in bloom in sandier soil.

These open foliaged, taller Flannel Flowers are the norm… 

There’s a lot of white flowers now, although much of the Spring show has finished.

And is this an Isopogon???

But the most mysterious of all to me was this shrub or small tree that a few weeks ago was to be seen in profuse white blossom in much of the Reserve. So widespread and numerous was it that I expected it to be touted, like the Flannel Flowers, as one of the sights to be seen here.

Any clues?

Pretty and profuse, and equally unidentified.

As for weird, the nubbly bark of this Banksia tree takes the cake!