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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).
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 ...
The Pacific yew (Taxus brevifolia), native to the Pacific Northwest of North America, and the Canada yew (Taxus canadensis) of Eastern and Central North America were the initial sources of paclitaxel or Taxol, a chemotherapeutic drug used in breast and lung cancer treatment and, more recently, in the production of the Taxus drug eluting stent ...
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.
One trunk of the Fortingall Yew. The tree's once massive trunk (52 ft or 16 m in girth when it was first recorded in writing, in 1769 [5]) with a former head of unknown original height, is split into several separate stems, giving the impression of several smaller trees, with loss of the heartwood rings that would establish its true age. [6]
Bermiego Yew, also called in Asturias "Teixu l'Ilesia" is an ancient tree of the species Taxus baccata growing in the village of Bermiego in the Principality of Asturias, northern Spain on the western slope of the Sierra del Aramo. The tree can be found just outside the village within the precincts of the village chapel of Santa Maria de Bermiego.
Taxus pedunculata (Siebold & Zucc.) C.Lawson C.Lawson Cephalotaxus harringtonii , commonly known as Korean plum yew , [ 2 ] Japanese plum-yew , [ 3 ] Harrington's cephalotaxus , [ 4 ] or cowtail pine , is a species of coniferous shrub or small tree in the family Taxaceae .
Taxus × media, also referred to as the Hybrid yew, Anglo-Japanese yew, or Anglojap yew is a conifer (more specifically, a yew) created by the hybridization of English yew Taxus baccata and Japanese yew Taxus cuspidata. [1] [2] This hybridization is thought to have been performed by the Massachusetts-based horticulturalist T.D. Hatfield in the ...