Bristly Oxtongue[Picris echioides] found in Rancho Palos Verdes, California, on 7 August 2013. It’s a member of the Aster (Asteraceae) family. Donald Moore Gales’ Handbook of Wildflowers, Weeds, Wildlife, and Weather of the South Bay and Palos Verdes Peninsula, page 168, states that it blooms from March to winter and is a common weed in the area.
USDA Plants Listing: Picris echioides