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A cypress knee is a distinctive structure forming above the roots of a cypress tree of any of various species of the subfamily Taxodioideae, such as the bald cypress. Their function is unknown, but they are generally seen on trees growing in swamps .
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.
Cupressaceae (cypress family) Athrotaxis selaginoides: King Billy pine Cupressaceae (cypress family) Callitris: cypress-pines; Callitris columellaris: white cypress-pine; Murray River cypress-pine; northern cypress-pine Cupressaceae (cypress family) Callitris preissii: Rottnest Island cypress-pine Cupressaceae (cypress family) Callitris verrucosa
Taxodium distichum (baldcypress, [3] [4] [5] bald-cypress, [6] bald cypress, swamp cypress; French: cyprès chauve; cipre in Louisiana) is a deciduous conifer in the family Cupressaceae. It is native to the southeastern United States. Hardy and tough, this tree adapts to a wide range of soil types, whether wet, salty, dry, or swampy.
The tree can also prevent damage to land caused by violent weather. [11] 4000-year-old Cypress of Abarkuh, Iran. The vast majority of the trees in cultivation are selected cultivars with a fastigiate crown, with erect branches forming a narrow to very narrow crown often less than a tenth as wide as the tree is tall. The dark green "exclamation ...
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 ...
Cupressus is one of several genera of evergreen conifers within the family Cupressaceae that have the common name cypress; for the others, see cypress. It is considered a polyphyletic group. Based on genetic and morphological analysis, the genus Cupressus is found in the subfamily Cupressoideae .
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]