California encelia, California brittlebush, or bush sunflower (Encelia californica)
Composite or sunflower family -- Asteraceae
February 20, 2015, Upper Santa Rosa Trail

Color: Yellow

Native

Red skinned onion (Allium haematochiton)
Onion family -- Alliaceae
February 20, 2015. Mesa Trail
Color:White
Native

Lupine (Lupinus bicolor)
Legume or bean family -- Fabaceae
February 20, 2015. Mesa Trail
Color: Blue, purple
Native