Viburnacae: Muskroot Family
Blue Elderberry – Sambucus mexicana
Woodland, brushy slopes
Common. A large shrub / small tree with dense clusters of creamy-white flowers turning into blue berries. The unripe berries and most other parts of the plant are poisonous. Berries are sometimes “glaucous”, i.e. covered in a waxy or powdery white film that is easily wiped off. Formerly called Sambucus nigra subsp. caerulea. Photo #3 by CJH.
Laurustinus – Viburnum tinus
up to 6 m
Probably a garden escape. The laurel-like leaves could be mistaken for Western Red Dogwood (Cornus sericea subsp. occientalis), but the clusters of five-petaled white flowers are quite different from the cruciform flowers typical of the dogwood.