Native plants include: Incense Cedar ( Calocedrus decurrens ), Oak ( Valley oak ), California Bay ( Umbellularia californica ), Manzanita ( Arctostaphylos manzanita ), Salvia ( Salvia spathacea ), Mountain Mahogany ( Cercocarpus betuloides ), Milkweed ( Asclepias speciosa ), California fuchsia ( Epilobium cleistogamum ), Monkeyflower ( Mimulus ),