Taxus contorta
Taxus contorta
Safety & Hazards
All parts of the plant, except the flesh of the fruit (actually an aril), are potentially highly poisonous. They contain the alkaloid taxine and , if ingested, can cause nervousness, trembling, slow pulse, pupil dilation, difficult breathing, abdominal pain, vomiting, diarrhoea, weakness and convulsions - in larger doses it can be fatal, having a paralyzing affect on the heart[ 1 Title RHS Dictionary of Plants plus Supplement. 1956 Publication Author F. Chittendon. Publisher Oxford University Press Year 1951 ISBN - Description Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]). , 4 Title A Modern Herbal. Publication Author Grieve. Publisher Penguin Year 1984 ISBN 0-14-046-440-9 Description Not so modern (1930's?) but lots of information, mainly temperate plants. , 7 Title Encyclopaedia of Medicinal Plants. Publication Author Chiej. R. Publisher MacDonald Year 1984 ISBN 0-356-10541-5 Description Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs. , 10 Title Poisonous Plants and Animals. Publication Author Altmann. H. Publisher Chatto and Windus Year 1980 ISBN 0-7011-2526-8 Description A small book, reasonable but not very detailed. , 19 Title Poisonous Plants. Publication Author Stary. F. Publisher Hamlyn Year 1983 ISBN 0-600-35666-3 Description Not very comprehensive, but easy reading. , 65 Title A Colour Atlas of Poisonous Plants. Publication Author Frohne. D. and Pfänder. J. Publisher Wolfe Year 1984 ISBN 0723408394 Description Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far. , 293 Title Poisonous Plants of North Carolina Publication Author Website http://www.ces.ncsu.edu/depts/hort/consumer/poison/poison.htm Publisher Year 0 ISBN Description An excellent concise but comprehensive guide to toxic plants that grow in N. Carolina. It lists even those plants that are of very low toxicity, including several well-known food plants such as carrots and potatoes. ].
Botanical Description
Taxus contorta is an evergeen shrub or a tree that can grow up to 12 metres tall. The bole often branches from low-down; in mature trees ir can be up to 350cm in diameter[ 266 Title Flora of China Publication Author Website http://flora.huh.harvard.edu/china/ Publisher Missouri Botanical Garden Press; St. Louis. Year 1994 ISBN Description An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available. ]. The plant is harvested from the wild mainly for medicinal use and for its wood. The plant has been harvested on a large scale for its bark and shoots, which are a source of the anticancer drug 'taxol'. This harvesting has proved to be unsustainable, and efforts are being made to cultivate the plant for this purpose. It is sometimes grown as an ornamental, mainly in Asia[ 338 Title IUCN Red List of Threatened Species Publication Author Website http://www.iucnredlist.org/ Publisher Year 0 ISBN Description A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat. ]. Taxus contorta has undergone a recent, rangewide population decline of at least 50 % but probably less than 80%. The causes of the decline are varied, ranging from over-exploitation associated with medicinal use to overcollection for fuelwood and fodder. The decline is continuing and while the causes are largely understood, in many areas they will not be reversible. The plant is classified as 'Endangered' in the IUCN Red List of Threatened Species(2013)[ 338 Title IUCN Red List of Threatened Species Publication Author Website http://www.iucnredlist.org/ Publisher Year 0 ISBN Description A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat. ].