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– California scrub oak – # California; Quercus bicolor Willd. – swamp white oak – eastern and midwestern North America; Quercus × bimundorum E.J.Palmer — two worlds oak; Quercus boyntonii Beadle – Boynton's post oak – south central North America; Quercus canariensis Willd. – Mirbeck's oak or Algerian oak – # North Africa & Spain
The valley oak may surpass 30 meters (98 feet) in height, with a sturdy trunk possibly exceeding 3 m (10 ft) in diameter. The "Henley Oak", in Covelo, California, is the tallest known valley oak, at 47 m (153 ft). [7] [8] The branches have an irregular, spreading and arching appearance.
Quercus alba, the species most commonly known as the white oak; Quercus bicolor, swamp white oak; Quercus arizonica, Arizona white oak; Quercus garryana, Oregon white oak or Garry oak; Quercus lobata, California white oak or valley oak; Quercus polymorpha, Mexican white oak or Monterrey oak; Lagunaria patersonia, the Queensland white oak
White oak has served as the official state tree of Illinois after selection by a vote of school children. [28] There are two "official" white oaks serving as state trees, one located on the grounds of the governor's mansion, and the other in a schoolyard in the town of Rochelle. The white oak is also the state tree of Connecticut [29] and Maryland.
Quercus kelloggii (California black oak) [158] Similar to northern red oak, the wood is suitable for paneling, furniture, carpentry and pallets. It has the widest distribution in California among the western oaks. Uses: timber; landscaping, palatable food, sap resins. [159] —
Quercus myrsinifolia is an evergreen oak tree that grows up to 20 metres (66 ft) tall. Leaves are 60–110 × 18–40 mm with serrulate margins; the petiole is 10–25 mm long. The acorns are ovoid to ellipsoid, 14–25 × 10–15 mm, and glabrous with a rounded apex; the flat scar is approx. 6 mm in diameter.
It is commonly known as the Garry oak, Oregon white oak or Oregon oak. It grows from sea level to an altitude of 690 feet (210 metres) in the northern part of its range, and from 980 to 5,900 ft (300 to 1,800 m) in the south of the range in California. [4] The eponymous Nicholas Garry was deputy governor of the Hudson's Bay Company.
Quercus sect. Quercus has been known, either in whole or part, by a variety of names in the past, including Quercus sect. Albae, Quercus sect. Macrocarpae and Quercus sect. Mesobalanus. Members of the section may be called white oaks. The section includes all white oaks from North America (treated by Trelease as subgenus Leucobalanus). [2]