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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.
Thuja are evergreen trees growing from 10 to 200 feet (3 to 61 metres) tall, with stringy-textured reddish-brown bark. The shoots are flat, with side shoots only in a single plane. The leaves are scale-like and 1 to 10 mm (0.039 to 0.394 in) long, except young seedlings in their first year, which have needle-like leaves.
The earliest written records of the tree by Europeans in the Americas are by French explorer Sieur de la Verendrye in 1731, who commented on the tree as a mature tree at that time, making it over 300 years old. [1] The tree is held sacred by the Ojibwe, who traditionally leave offerings of tobacco to ensure a safe journey on Lake Superior. Due ...
[2] [3] [7] [8] The tree begins bearing seeds at 4–5 years, but does not reach full maturity and start producing cones until it is 10-20 years old. Seeds are dispersed nearly every year and travel by wind. [11] Height and diameter of the tree increase steadily until the tree is 50 years old, at which point height growth slows.
Hinokitiol has been found in the heartwood of the conifer trees of the Cupressaceae family, including Chamaecyparis obtusa (Hinoki cypress), Thuja plicata (Western red cedar), Thujopsis dolabrata var. hondai (Hinoki asunaro), Juniperus cedrus (Canary Islands juniper), Cedrus atlantica (Atlas cedar), Cupressus lusitanica (Mexican white cedar), Chamaecyparis lawsoniana (Port Orford cedar ...
Thuja plicata is a large evergreen coniferous tree in the family Cupressaceae, native to the Pacific Northwest of North America. Its common name is western redcedar in the U.S. [2] or western red cedar in the UK, [3] and it is also called pacific red cedar, giant arborvitae, western arborvitae, just cedar, giant cedar, or shinglewood. [4]
Thuja standishii (Japanese thuja; Japanese: nezuko, kurobe) is a species of thuja, an evergreen coniferous tree in the cypress family Cupressaceae. It is native to southern Japan, where it occurs on the islands of Honshū and Shikoku. It is a medium-sized tree, reaching 20–35 m tall and with a trunk up to 1 m diameter.
Platycladus is a monotypic genus of evergreen coniferous trees in the cypress family Cupressaceae, containing only one species, Platycladus orientalis, also known as Chinese thuja, [5] Oriental arborvitae, [6] Chinese arborvitae, biota or Oriental thuja.