I don’t think it is Pimelea treyvaudii, which has 8-11 leaf like bracts just under the heads. Theses plants have about 14-24 bracts closely pressed to the flower heads, more typical of a daisy, though I have no idea which one, I have assumed it is a garden escape.
Betty it is hard to tell but when I blow up picture I think it only has the 9-11 bracts and some the other bract like structures are developing flowers - everything else seems to fit for P. treyvaudii
To purple66. It is a pity the flowers were not fully open when the photos were taken. Any possibility of getting a later photo? Could you get back to the site this weekend?
Unfortunately I am unable to return to the site at the moment. I had weekend commitments and will be away in Sydney for a week from this Wednesday. The only place I saw the plants was beside the vehicle track that follows the underground pipeline from Bendora Dam to the Cotter pumping station. Hence they were in a disturbed area following the dam and pipeline being constructed in the early 1960's. I appreciate that if in flower the plants would be easier to identify but I didn't see any further advanced that the one I photographed.
Thanks Purple66 - sometimes it can be tricky to identify plants just from a photo, so we will leave this one as unidentified - having multiple photos of close-up of basal leaves, stem leaves and flowers (including a side on shot of the flower head) can increase the chances of ID but sometime we just can't be certain. Thanks again for posting this sighting
To add to Michael’s comments. Also a clear head on shot of a flower. At least the record is on CNM. Someone might go back to that spot and have another look sime time.