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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.
T. plicata is an important tree to the First Nations people of the Pacific Northwest and is sometimes called "Canoe Tree" because of its use as a material for Native American canoes. [citation needed] Oil of Thuja contains the terpene thujone which has been studied for its GABA receptor antagonizing effects, with potentially lethal properties. [26]
Argyresthia thuiella, the arborvitae leafminer, thuja mining moth or American thuja shoot moth, is a moth of the family Yponomeutidae. It is found in southeastern Canada and the northeastern United States to North Carolina, west to Missouri, north to Manitoba. There is also an isolated population in British Columbia.
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]
The Trees of North America.; For the purposes of this category, "North America" is defined in accordance with the World Geographical Scheme for Recording Plant Distributions (WGSRPD), which calls it Northern America, namely as one of the nine "botanical continents".
Thuja: arborvitae; Thuja occidentalis: eastern arborvitae Cupressaceae (cypress family) 241 Thuja plicata: giant arborvitae Cupressaceae (cypress family) 242 Pinaceae: pine family; Abies: fir trees; Abies alba: European silver fir Pinaceae (pine family) Abies amabilis: Pacific silver fir Pinaceae (pine family) 11 Abies balsamea: balsam fir ...
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Argyresthia canadensis, the Canadian arborvitae leafminer or cedar leafminer, is a moth of the family Yponomeutidae. It is found in North America. There is one generation per year. The larvae feed on Thuja occidentalis. They have a green body, a dark brown head and a central brown patch on the prothoracic shield and anal plate.