| 词条 | Taxus × media |
| 释义 |
| name = Taxus × media | image = Taxus media.JPG | image_caption = Two immature Taxus media (Anglojap) var. hicksii yews planted in central Indiana, United States of America. Although T. media are slow-growing, the specimen on the right may require pruning within 2-3 years in order to avoid blocking the nearby sidewalk. | genus = Taxus | species = {{hybrid}} media | authority = Rehder }}Taxus × media, more commonly known as the Anglojap yew[1] or simply Taxus media, is a conifer (more specifically, a yew) created by the hybridization of yew species Taxus baccata and Taxus cuspidata. This hybridization was thought to have been performed by the Massachusetts-based horticulturalist T.D. Hatfield in the early 1900s.[2] Taxonomy and common namingThe common name Anglojap is a portmanteau stemming from the national origin of T. baccata (a species native to England) and the national origin of T. cuspidata (a species native to Japan).[1] DescriptionLike most yew species, T. × media prefers well-drained and well-watered soils, but has some degree of drought tolerance and in fact may die in conditions of excessive precipitation if the soil beneath the plant is not sufficiently well-drained.[1] Taxus × media is among the smallest extant species in the genus Taxus and (depending upon cultivar) may not even grow to the size of what one would consider a typical tree. Immature shrubs are very small and achieve (over the time span of ten to twenty years) heights of at most {{convert|20|ft|m|abbr=on}} and diameters of at most {{convert|8|ft|m|abbr=on}}, depending on the cultivar.[2] Furthermore, T. × media is known to grow rather slowly and is not injured by frequent pruning, making this hybrid very desirable as a hedge in low-maintenance landscaping and also a good candidate for bonsai.[1]ToxicityTaxus × media also shares with its fellow yew trees a high level of taxine in its branches, needles, and seeds. Taxine is toxic to the mammalian heart.[3]Varieties (Cultivars)
References1. ^1 2 3 The Ohio State University Plant Facts: Anglojap Yew {{Taxonbar|from=Q6292155}}{{DEFAULTSORT:Taxus media}}2. ^1 2 3 University of Connecticut Horticulture: Taxus Media 3. ^{{ cite journal | last1=Wilson|first1=C. R.|last2=Sauer|first2=J.|last3= Hooser|first3= S. B. | title = Taxines: A review of the mechanism and toxicity of yew (Taxus spp.) alkaloids | journal = Toxicon | year = 2001 | volume = 39 | issue = 2–3 | pages = 175–85 | doi = 10.1016/s0041-0101(00)00146-x | pmid = 10978734 }} 4. ^University of Illinois - Selecting Shrubs for Your Home 8 : Taxus|Medicinal plants|Poisonous plants|Trees of humid continental climate|Hybrid plants|Ornamental trees|Least concern plants|Plants used in bonsai |
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