This is commonly known as the California White Oak, Roble, Valley Oak, Valley White Oak, Water Oak, Weeping Oak as well as White Oak.
Valley Oaks grow quickly, reaching 20 feet in 5 years, and 40 feet in 10 years, and up to 60 feet in 20 years.
This is an ornamental and shade tree, often 30 m (100 feet) tall. It has graceful, drooping branches, many-lobed dark green leaves . The distinctive acorns are medium to dark brown and range from two to three centimeters (0.8–1.2 inches) in length.
Max. Height 60 - 100 ft (18.3 - 30.5 m)
Max. Width 50 ft (15.2 m)
USDA Zones: 5-10
Medicinal use : Any galls produced on the tree are strongly astringent and can be used in the treatment of hemorrhages, chronic diarrhea, dysentery etc. A poultice of the ground galls and salt has been used as a treatment for burns, sores and cuts. A decoction of the bark has been used as a cough medicine and a treatment for diarrhea. The pulverized bark has been used as a dusting powder to dry up running sores, it is particularly useful for babies with sore umbilicus
Edible parts : Seed - cooked. A staple food for several native North American Indian tribes. Quite large, it is up to 5 cm long and 15 mm wide. The seed of this species is sweet and low in tannin and needs little if any leeching.
Other uses : A mulch of the leaves repels slugs, grubs etc, though fresh leaves should not be used as these can inhibit plant growth. The acorn meal has been used to mend cracks in clay pots. Wood - hard and fine grained but brittle and weak. Of no commercial value, it is used only for fuel.