California Desert Thorn
Family: Solanaceae (NIGHTSHADE, POTATO).
Other common names: California boxthorn.
Generic common name: BOX THORN.
Cabrillo National Monument: coastal bluffs, Jan 2010.
Characteristics: Native, White, Red, Small, Solitary, Simple, Woody, Perennial, Winter, Early Spring, Late Spring.
Status: CNPS List 4.2
Photographed out of range.
If you see this in or near the SMM floristic region we'd like to know.