seeds of Sequoiadendron giganteum, Sierra Redwood
Sequoiadendron giganteum Samen
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Sequoiadendron giganteum, commonly called the Sierra redwood, is one tree species of the genus Sequoiadendron. The tree’s synonyms include Americus gigantean, Americus giganteus and Sequoia gigantea. Other names used to refer to the tree include Wellingtonia, giant redwood and giant sequoia. Sequoiadendron giganteum is originally from the Sierra Nevada Mountains of the state of California in the United States. The tree currently grows in Australia, Chile, New Zealand and most of Southern and Western Europe. Sequoiadendron giganteum is the biggest tree in the world owing to its height and a thick trunk. Trees can grow to a height of 50 to 85 metres and attain a trunk diameter of 6 to 8 metres. Giant sequioia have a long lifespans given some trees have been estimated to live longer than 3500 years. The leaves have a spiral arrangement, are evergreen, shaped like awls and have a length of 3 to 6 mm. Cones, on the other hand, are green, scaly and have a length of 4 to 7 mm. While being both resistant to decay and fire, wood from mature Sierra redwood trees isn’t suitable for construction. The reason being that it’s brittle and fibrous. Thus, the wood is only useful in the making of matchsticks, shingles and fence posts. Conversely, wood from immature redwood is less brittle and matches the quality of wood from tree species regularly used for construction. Sequoiadendron giganteum is useful as both a Christmas tree and an ornamental tree. The reason for the former is due to its suitable shape and the latter due to its beauty and majestic size. Sequoiadendron giganteum is a hardy plant and can withstand windy conditions, arid conditions and low temperatures of up to -31˚C. It can’t however, survive in a polluted environment. Younger trees can comfortably grow in the shade but mature trees cannot. The plant is capable of growing in most soil types.
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