Family: Asteraceae (radiate) (SUNFLOWER).
Other common names: California groundsel, California butterweed.
Generic common name: GROUNDSEL, RAGWORT, BUTTERWEED.
Cabrillo National Monument: coastal sage scrub, April 2008.
Characteristics: Native, Yellow, Large, Solitary, Simple, Herbaceous, Annual, Early Spring, Late Spring.
Photographed out of range.
If you see this in or near the SMM floristic region we'd like to know.