Cotula duckittiae

Cotula duckittiae is one of many Asteraceae species that flowers yellow in spring along the west coast. The button-like flowerheads are produced in numbers well above the leaves.

There is more about this plant in the Cotula Album under Genera (Manning, 2009; Manning and Goldblatt, 1996; Bond and Goldblatt, 1984; iNaturalist).