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Taxus baccata is a species of evergreen tree in the family Taxaceae, native to Western Europe, Central Europe and Southern Europe, as well as Northwest Africa, northern Iran, and Southwest Asia. [4] It is the tree originally known as yew , though with other related trees becoming known, it may be referred to as common yew , [ 5 ] European yew ...
Taxine can be found in Taxus species: Taxus cuspidata, T. baccata (English yew), Taxus x media, Taxus canadensis, Taxus floridana, and Taxus brevifolia (Pacific or western yew). All of these species contain taxine in every part of the plant except in the aril , [ citation needed ] the fleshy covering of the seeds (berries).
They are many-branched, small trees and shrubs.The leaves are evergreen, spirally arranged, often twisted at the base to appear 2-ranked.They are linear to lanceolate, and have pale green or white stomatal bands on the undersides.
The Llangernyw Yew (pronounced [ɬanˈɡɛrnɨu] ⓘ) is an ancient yew (Taxus baccata) in the village of Llangernyw, Conwy, Wales. The tree is fragmented and its core part has been lost, leaving several enormous offshoots. The girth of the tree at the ground level is 10.75 m (35.3 ft). [1]
T. baccata appears throughout Europe and into western Asia. [2] T. cuspidata occurs over much of East Asia, in China, Japan, Korea, and Sakhalin. [13] Taxus brevifolia ranges in the United States from California to Montana and Alaska, [12] while Taxus canadensis appears in the northeastern United States and southeast Canada. [2]
It is most prominently given to any of various coniferous trees and shrubs in the genus Taxus: European yew or common yew (Taxus baccata) Pacific yew or western yew (Taxus brevifolia) Canadian yew (Taxus canadensis) Chinese yew (Taxus chinensis) Japanese yew (Taxus cuspidata) Florida yew (Taxus floridana) Mexican yew (Taxus globosa)
Gümeli Porsuğu is a yew tree (Taxus baccata) growing high in Zonguldak district of Black Sea Region, in Turkey. As of 2019, it was estimated to be 4,115 years old. [1] [2] [3] The region where the tree is located was included within the borders of Gümeli Nature Monument on July 14, 2016. [4]
Cephalotaxus species produce cephalotaxine, an alkaloid.Parry et al 1980 provides evidence that cephalotaxine is a phenylethylisoquinoline.However, they also find this genus to be unable to incorporate cinnamic acid into cephalotaxine, and incorporation of cinnamic acid is usually a step in phenylethylisoquinoline syntheses, throwing the phenylethylisoquinoline theory in to question.