Bristly Oxtongue Helminthotheca echioides 

Looked out early this morning  and found a new flower just beginning to open. Set up quickly and took a couple of shots.

It shows the reddish petals at the outside that aren't seen when the flower opens fully.

Also took a pic of yesterday's flower still tucked back from it's night retreat. Shows the Orange/Red colour well on the outside of the flower, as well as the 'nest' of prickles around it