perennial tree/bushes:

manzanita, berries
madrone, berries
toyon, berries
california bay laurel, "nut/berries", leaves for seasoning
wild rose, "hips"
prickly pear, "pears" and leaves


other:

dandelion, new leaves, roots
plantain, leaves
thistles, leaf ribs
stinging nettle, leaves
yerba santa, leaves for "tea"
sage, leaves for seasoning