Tuesday, July 10, 2018

Sequoiadendron giganteum – Big Tree – Mammoth Tree

General Information
Common Name Big Tree, Mammoth Tree
Scientific Name Sequoiadendron giganteum
Sun Tolerance Full Sun
Height 95 m (311 ft)
Spread 20 - 25 m (66 - 82 ft)
Growth Rate Fast
Bloom Time Spring
Color Green,
Flower Color Yellow
Type Tree
Native USA, Asia, Europe.
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
SuperdivisionSpermatophyta – Seed plants
Division Coniferophyta – Conifers
Class Pinopsida
Order Pinales
Family Cupressaceae – Cypress family
Genus Sequoiadendron  –  Giant Sequoia
Species S. giganteum

Sequoiadendron giganteum - Mammoth Tree
Sequoiadendron giganteum commonly known as Mammoth Tree also called Big Tree or Wellingtonia is the largest and long living tree. The Wellingtonia provides the largest tree in the world – over 50,000 cubic feet (over 1,000 tons) in the Sequoin National Park in the Sierra Nevada of California. It lives for upwards of three thousand years, yet it is second in longevity to the scruffy, distorted Bristle-cone Pine, Pinus aristata Engelm. Many people will recall the Wellingtonia as the tree through which one could drive a car! Its native habitat is now some seventy isolated groves at between five thousand feet and eight thousand feet amid the sierras of northern California, where many of the trees stand as huge orange-colored columns perplexing the imagination and almost defying the skill of the photographer. The tree was first introduced into Europe in 1853.
The world's largest single trees and largest living thing by volume. Giant sequoias grow to an average height of 50–85 m (164–279 ft) and 6–8 m (20–26 ft) in diameter. Record trees have been measured to be 94.8 m (311 ft) in height. Claims of 17 m (56 ft) diameter have been touted by taking an author's writing out of context, but the widest known at chest height is closer to 8.2 m (27 ft).  The young shoots remain covered by the needles (more correctly, leaves) for three or four years. The minute scale less buds are hidden by the foliage. The needles are lance-shaped ‘scales’ which completely clothe the twigs, with a four-pointed tip, and when crushed have a minty smell.
Both sexes of flowers are on the same tree, the small club-shaped yellow males in clusters at the twig tips, and the pale green globular females, bearing spine-tipped bracts, further back. The cones are egg-shaped, made up of thick flat-surfaced green scales which do not overlap. They swell to 2.5 – 5 cm long, becoming reddish-brown, and mature in the second autumn, releasing winged seeds. Many of the empty cones persist on the tree for indefinite periods.
Sequoiadendron giganteum - Mammoth Tree
The fibrous bark is reddish-brown (‘fox-red’) to blackish-brown or grey, soft and spongy, becoming very thick and deeply fluted with age. Underneath is an inner layer that is thin and firm. Where side branches have fallen away, distinct cavities are left in the bark. The tree is conical in shape, with a tapering and broadly buttressed trunk, and with drooping branches and a narrow crown. The wood has a thin zone of pale yellow sapwood, and a reddish-brown heartwood. It is soft, strong, and naturally durable; when from time to time and individual tree is felled the wood is used for general planking, posts and garden furniture.
The towering Wellingtonia is conspicuous as an avenue and park tree, and stands out un-mistakenly in the distant landscape. A few groves as at Westonbirt in Gloucestershire, indicate that the tree might be successful in European country in plantation form, but in general silviculturists have not planted it, perhaps chiefly on count of the high cost of plants.
The popular English name, Wellingtonia, was given in honor of the Duke of Wellington (1769-1852). Americans call it the Big Tree or Mammoth Tree.

Young Plant of Mammoth Tree

Sequoiadendron giganteum Young Plant

Leaves of Mammoth Tree

Sequoiadendron giganteum Leaves

Male Flowers of Mammoth Tree

Sequoiadendron giganteum Male Flowers

Female Cones of Mammoth Tree

Sequoiadendron giganteum Female Cones

Mammoth Tree Female Cone

Mammoth Tree Mature Cone

Male & Female Flowers of Mammoth Tree

Bark of Mammoth Tree

Sequoiadendron giganteum Bark

Log of Mammoth Tree

Sequoiadendron giganteum Log

Mammoth Tree Log

Mammoth Tree as Ornamental Plant

Sequoiadendron giganteum ornamental Plant

Mammoth Tree Ornamental Plant

Ornamental Plants of Mammoth Tree

Sequoiadendron giganteum - Mammoth Tree

Sequoiadendron giganteum - Mammoth Tree

Sequoiadendron giganteum - Mammoth Tree
The Video about Mammoth Tree:

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