Celmisia angustifolia

One you can grow.

Strap-leaved Daisy. Vigorous subshrub to 25cm tall rapidly growing to 1.5m in diameter in the wild. Here it actually survives and gets bigger. Leaves entire, smooth, grey above, white below, narrow, about 4cm long. Flower heads 3.5cm. Seems tough in shade or semi-shade to keep it cool here. A moist well drained position. Small plants in a 7cm pot. Photographed just inside the bush, you can see the celmisia (C. discolor) is happy enough in the shade.  In this way we can ensure they stay cooler.
Second photograph thank you to 

William Harland