Family: Resedaceae (MIGNONETTE).
Other common names: lineleaf whitepuff, leaved cambess, desert-spike.
Generic common name: OLIGOMERIS.
Cabrillo National Monument: sandy slopes on the ocean side of the peninsula, April 2009.
Characteristics: Native, Green, Small, Clusters, Simple, Herbaceous, Annual, Early Spring.
Photographed out of range.
If you see this in or near the SMM floristic region we'd like to know.