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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 alba, the white oak, is one of the preeminent hardwoods of eastern and central North America. It is a long-lived oak, native to eastern and central North America and found from Minnesota, Ontario, Quebec, and southern Maine south as far as northern Florida and eastern Texas. [3]
As a result, soil, climate, and vegetation share characteristics of both eastern and western Oregon. The region is characterized by Oregon white oak woodlands and ponderosa pine forests in the east and Douglas-fir and western hemlock forests in the west. Some grasslands also occur.
Grove of Oregon white oaks near Hillsboro Fall colors in Wilsonville. Historically, the Willamette Valley forests were mostly an oak savanna, tall grasslands with scattered Oregon white oaks (Quercus garryana), and groves of coast Douglas-fir (Pseudotsuga menziesii subsp. menziesii). The river floodplains contained extensive wetlands, stands of ...
A hybrid white oak, possibly Quercus stellata × Q. muehlenbergii. Interspecific hybridization is quite common among oaks, but usually between species within the same section only, [44] and most common in the white oak group. White oaks cannot discriminate against pollination by other species in the same section.
The slopes are covered by Oregon white oak woodland, Coast douglas-fir, grand fir, ponderosa pine, pacific madrone, tanoak, and chinquapin, with an understory chaparral community that includes snowberry, salal, Oregon grape, poison oak, oceanspray, and swordfern. Many areas have been converted to pastureland, vineyards, orchards, and row crops.
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] The staminate flowers have seven or more stamens. The acorns mature in one year. The seed leaves are either free or fused together. The cup at the base of the acorn has thickened triangular ...
Quercus lobata Née – valley oak or California white oak – California; Quercus lusitanica Lam. – gall oak or Lusitanian oak – Iberia, North Africa; Quercus lyrata Walter – overcup oak – eastern North America; Quercus × macdonaldii Greene & Kellogg – California; Quercus macdougallii Martínez – Mexico; Quercus macranthera Fisch ...