taxus spp mckenzie walters november 3, 2014 period: 3 or 4
TRANSCRIPT
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Taxus spp
McKenzie WaltersNovember 3, 2014
Period: 3 or 4
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Common Name
• Yew (Taxus spp.)
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Latin Name
• Taxus spp and cv• Due to many different species and cultivars of
yew’s.• Ex.• Taxus canadensis• Taxus baccata
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• Hardiness Zone: 6-7 mostly but occasionally 5-9
• Plant Type: Shrub or Tree• Evergreen • Geographic Origin: Native to Europe, West
Asia, and North Africa
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• Height: Up to 60 Feet• Spread: 15- 25 Feet• Sun exposure (Light vs Shade): Full Sun to par
shade.• Water Requirements: Not much, xerophyte.
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Lanscape
• Site Requirement: Well drained soil • Maintenance: Pruning twice a year• Noteworthy Characteristics: Some species
have poisonous berries. Soft needle like leaves.
• Landscape Uses: attracts bee’s and butterflies
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Pest
• Pest or other problems noted• Attracts bees• tortrix moth• vine weevil• gall mites • scale insects
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Taxus spp. And cv.
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Taxus spp and cv
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1
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• All parts, except the flesh of the berries, contain taxin(e) a complex of alkaloids which is rapidly absorbed.
• 3mm Also present are ephedrine, a cyanogenic glycoside (taxiphyllin) and a volatile oil.
Poisonous
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• Evergreen needles 1 “ long• Single, spirally arranged but appearing 2-
ranked on shaded branches• Needles typically angled upward forming a V-
shape on branch• Dark green and shiny above, yellow or pale
green below with 8-10 stomatal rows.
Leaf
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Taxus spp.
• evergreen shrub or small tree• slow growing and long-lived • twigs are smooth, reddish-brown, and very
hard• arils (red berry-like structures) contain seeds
that are poisonous to animals; human stomachs can break down the seed coat and therefore are not harmed by consumption of arils
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• It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade
• Used for medicinal purposes (Ex. Cancer)• Link: http://
www.pfaf.org/user/plant.aspx?LatinName=Taxus+baccata
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Yews come in many shapes and sizes
• +• +
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References
• http://www.thepoisongarden.co.uk/atoz/taxus_baccata.htm
• http://plants.usda.gov/core/profile?symbol=TABA80
• http://www.kew.org/science-conservation/plants-fungi/taxus-baccata-common-yew
• https://www.rhs.org.uk/Plants/18001/Taxus-baccata/Details