45ac3812_des_Peninsula_Land_Conservancy__Notes_on_the_species
[Species] deerweed (Lotus scoparius) [Notes on the species] 
Deerweed is a small, short-lived plant that inhabits disturbed areas. The most important quality of this plant is that it is the host plant for the Palos Verdes blue butterflies. The small yellow flowers turn red after they are pollinated, by either butterflies or bees.
Education & Research: Native Plants | Palos Verdes Peninsula Land Conservancy
Notes on the species