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Leaves of young cypress trees are spreading and awl-shaped, and are typically small, scale-like formations that tightly adhere to older branches. They are usually aromatic , with glandular pits on the outer surface, and cover the stem in opposite pairs, giving the branchlet a four-sided appearance.
Thuja occidentalis, also known as northern white-cedar, [1] eastern white-cedar, [2] or arborvitae, [2] [3] is an evergreen coniferous tree, in the cypress family Cupressaceae, which is native to eastern Canada and much of the north-central and northeastern United States. [3] [4] It is widely cultivated as an ornamental plant.
The five species in the genus Thuja are small to large evergreen trees with flattened branchlets. The leaves are arranged in flattened fan shaped groupings with resin-glands, and oppositely grouped in 4 ranks. The mature leaves are different from younger leaves, with those on larger branchlets having sharp, erect, free apices.
Cypress are evergreen trees or large shrubs, growing to 5–40 m (16–131 ft) tall, exceptionally up to 102 m tall (the second-tallest tree species on earth, after Sequoia sempervirens) in Cupressus austrotibetica. [5] The leaves are scale-like, 2–6 mm long, arranged in opposite decussate pairs, and persist for three to five years. On young ...
Dawn redwood is widely planted as an ornamental tree because of its excellent horticultural qualities, rapid growth and status as a living fossil. [26] Giant sequoia is a popular ornamental tree [27] and is occasionally grown for timber. [28] Giant sequoia, [29] Leyland cypress, and Arizona cypress are grown to a small extent as Christmas trees ...
In classical antiquity, the cypress was a symbol of mourning, and in the modern era, it remains the principal cemetery tree in both the Muslim world and Europe. In the classical tradition, the cypress was associated with death and the underworld because it failed to regenerate when cut back too severely.
A large, evergreen tree, Cupressus × leylandii reaches a size between 20 and 25 m high, with its leaves giving it a compact, thick and regular habit. It grows very fast with yearly increases of 1 m. The leaves, about 1 mm long and close to the twig, are presented in flaky, slightly aromatic branches. They are dark green, somewhat paler on the ...
Hesperocyparis arizonica was given its first scientific name and described by Edward Lee Greene in 1882 as Cupressus arizonica, placing it in genus Cupressus. [3] [5] This description was soon after disputed by Maxwell T. Masters who, in 1896, published a journal article where he said it should be considered a subspecies of Cupressus benthamii with the variety name of arizonica. [3]