I have had another look at blown up parts of photo 1. On second thoughts, apart from the flower heads being the wrong colour for Calocephalud citreus, the leaves are scattered. They are mostly opposite each other in Calocephalus citreus. A few of the flower heads have a suggestion of a couple of narrow darker bracts at the base, so it might be Rhodanthe anthemoides in bud. Good closeups of a flower head and part of a stem including a few whole leaves would have helped in ID.