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Quercus variabilis is a medium-sized to large deciduous tree growing to 25–30 metres (82–98 feet) tall with a rather open crown, and thick corky bark with deep fissures and marked by sinuous ridges.
– 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
An oak is a hardwood tree or shrub in the genus Quercus of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisphere; it includes some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene.
Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. [4] It is California's most drought-tolerant deciduous oak, [5] and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. [6] [7]
Let me note first that Linnaeus’ major scientific contribution was the binomial (two names) system whereby each class of plants and animals is awarded a genus name followed by a species, both in ...
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]
When a winter storm is on the way, everyone rushes to the grocery store. If you don't join them quickly, the shelves could be bare by the time those first flurries fall. You'll probably buy extra ...
WASHINGTON -- Secret Service agents on Friday officially said goodbye to “Deacon,” the code-name they used for former President Jimmy Carter, who had the longest-serving security detail in the ...