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Several hypotheses have been proposed to explain the origin of Sequoia's polyploidy: allopolyploidy by hybridization between Metasequoia and some probably extinct taxodiaceous plant; Metasequoia and Sequoiadendron, or ancestors of the two genera, as the parental species of Sequoia; and autohexaploidy, autoallohexaploidy, or segmental ...
Sequoia sempervirens (/ s ə ˈ k w ɔɪ. ə ˌ s ɛ m p ər ˈ v aɪ r ən z /) [3] is the sole living species of the genus Sequoia in the cypress family Cupressaceae (formerly treated in Taxodiaceae). Common names include coast redwood, coastal redwood and California redwood. It is an evergreen, long-lived, monoecious tree living 1,200 ...
However, there still was possibly prolonged range overlap between Sequoia and Metasequoia which could have led to hybridization events that created the modern hexaploid Sequoia sempervirens. [9] [10] See also the metastudy of the geologic history of the giant sequoia and the coast redwood. [11]
Metasequoia, or dawn redwood, is a genus of fast-growing coniferous trees, one of three species of conifers known as redwoods. The living species Metasequoia glyptostroboides is native to Lichuan county in Hubei province, China. Although the shortest of the redwoods, it grows to at least 165 feet (50
A visitor communes with a giant Sequoia in Sequoia National Park. (Genaro Molina/Los Angeles Times) For Jordan, the sequoias still are symbols of stability, serenity and perseverance.
The giant sequoia is usually found in a humid climate characterized by dry summers and snowy winters. Most giant sequoia groves are on granitic-based residual and alluvial soils. The elevation of the giant sequoia groves generally ranges from 1,400–2,000 m (4,600–6,600 ft) in the north, to 1,700–2,150 metres (5,580–7,050 ft) to the south.
Ultimately, the roughly 275-foot-tall icon was spared, but other giant sequoias weren’t so lucky. Redwood Mountain Grove in neighboring Kings Canyon National Park “lost an estimated 974 to ...
Managing the Sierra groves for low-intensity fire, and attempting to prevent and exclude higher-intensity fire, is like managing for the extinction of giant sequoias. Opinion: We've got it all ...