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Taxus brevifolia, the Pacific yew or western yew, is a species of tree in the yew family Taxaceae native to the Pacific Northwest of North America. It is a small evergreen conifer , thriving in moisture and otherwise tending to take the form of a shrub .
Sciadopitys: sciadopitys trees; Sciadopitys verticillata: koyamaki; umbrella-pine Sciadopityaceae (umbrella pine family) Taxaceae: yew family; Taxus: yew trees; Taxus baccata: European yew Taxaceae (yew family) Taxus brevifolia: Pacific yew Taxaceae (yew family) 231 Taxus canadensis: Canada yew; American yew Taxaceae (yew family) Taxus ...
Taxaceae (/ t æ k ˈ s eɪ s i. iː,-ˌ aɪ /), commonly called the yew family, is a coniferous family which includes six extant and two extinct genera, and about 30 species of plants, or in older interpretations three genera and 7 to 12 species.
The modern Irish name for Newry is An tIúr (pronounced [ənʲ ˈtʲuːɾˠ]), which means "the yew tree". An tIúr is a shortening of Iúr Cinn Trá, "yew tree at the head of the strand", which was formerly the most common Irish name for Newry. This relates to an apocryphal story that Saint Patrick planted a yew tree there in the 5th century.
The following is a list of individual trees. Trees listed here are regarded as important or specific by their historical, national, locational, natural or mythological context. The list includes actual trees located throughout the world, as well as trees from myths and religions
A Pacific yew tree, known as a strong conifer whose bark has been used to treat cancer, fell in December after 410 years in Washington state. A Pacific yew tree, known as a strong conifer whose ...
These included yew trees, whose bark is used for the cancer drug paclitaxel. [29] [30] However, methods were developed to produce the drug semi-synthetically from the leaves of cultivated European yews. Those can be sustainably harvested without the need to further endanger wild populations, and the Pacific yew is no longer at risk. [31]
Paclitaxel was originally derived from the Pacific yew tree. [ 4 ] [ 5 ] Taxanes are difficult to synthesize because of their numerous chiral centres—taxol has 11 of these. Recently, the presence of taxanes in the shells and leaves of Corylus avellana (the common hazel plant) has been reported.