This yellow Asteraceae flower is a composite flower (capitulum)consisting of multiple individual flowers attached to the same base. Here the flowers on the outside of the composite flower (the ray florets) are open, but the inner flowers (the disk florets) are still closed. The ray florets fuse their petals into one giant lobe. See the next picture to see the same plant's flower with the disk florets open. This is most likely one of the several species of tarplant, possibly _Deinandra_.
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