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Quercus garryana is an oak tree species of the Pacific Northwest, with a range stretching from southern California to southwestern British Columbia. [3] It is commonly known as the Garry oak, Oregon white oak or Oregon oak .
The genus Quercus contains about 500 known species, plus about 180 hybrids between them. [1] The genus, as is the case with many large genera, is divided into subgenera and sections. Traditionally, the genus Quercus was divided into the two subgenera Cyclobalanopsis, the ring-cupped oaks, and Quercus, which included
The range is part of the Northern California coastal forests ecoregion. It is largely forested with climax-dominant trees including coast Douglas-fir (Pseudotsuga menziesii ssp. menziesii), oak (Quercus garryana and Q. kelloggii), and tanoak (Lithocarpus densiflorus), with pockets of Sugar Pine (Pinus lambertiana) found along steep slopes above the fogline.
Native ash species, including white ash (pictured), have been declining rapidly this century due to predation by the emerald ash borer. [1]Silvics of North America (1991), [2] [3] a forest inventory compiled and published by the United States Forest Service, includes many hardwood trees.
Quercus garryana var. semota – Garry oak; Quercus lobata – Valley oak; Quercus wislizenii – Interior live oak; Salix laevigata – Red willow; Salix lasiolepis – Arroyo willow; Chaparral Adenostoma fasciculatum – Chamise (dominant species) Arctostaphylos spp. – Manzanita Arctostaphylos mewukka – Indian manzanita (sn-endemic)
The West Rocky Prairie Unit has over 300 acres (120 hectares) of woods, 360 acres (150 hectares) of wetlands, 40 acres (16 hectares) of Quercus garryana (Garry oak trees), and 300 acres (120 hectares) of Mima mounds. [3]
Of particular importance was the Garry Oak (Quercus garryana), a species of oak. It is distributed between British Columbia and California but grows best around Victoria . Around 1800, this system covered around 15 km² in the area of today's city.
Quercus × subconvexa J.M.Tucker [ 1 ] Quercus × subconvexa is a naturally-occurring hybrid oak resulting from a cross between Q. durata and Q. garryana , found in California.