Cydonia oblonga
Cydonia oblonga
Safety & Hazards
The seed contains cyanogenic glycosides. When injested, these compounds break down in the digestive tract to release cyanide. Used in small quantities in both traditional and conventional medicine, this exceedingly poisonous compound has been shown to stimulate respiration, improve digestion, and promote a sense of well-being[ 238 Title Encyclopaedia of Herbs and their Uses. Publication Author Bown. D. Publisher Dorling Kindersley, London. Year 1995 ISBN 0-7513-020-31 Description A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant. ]. It is also claimed by some to be of benefit in the treatment of cancer - though this claim has been largely refuted. In larger concentrations, however, cyanide can cause gasping, weakness, excitement, pupil dilation, spasms, convulsions, coma and respiratory failure leading to death[ 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. ]. The levels of toxin can be detected by the level of bitterness:- sweet almonds, for example, contain only very low levels of it and are safe to eat in quantity, whilst bitter almonds (which are used as a flavouring in foods such as marzipan) contain much higher levels and should only be eaten in very small quantities. Great caution should be employed if the taste is moderately to very bitter[ K Title Plants for a Future Author Ken Fern Description Notes from observations, tasting etc at Plants For A Future and on field trips. ].
Botanical Description
Cydonia oblonga is an unarmed, deciduous tree with crowded branches and a low quaint habit; it can grow 5 - 7.5 metres tall[ 11 Title Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Publication Author Bean. W. Publisher Murray Year 1981 ISBN - Description A classic with a wealth of information on the plants, but poor on pictures. ]. The quince has a long history of cultivation as a fruit crop, dating back at least to the early days of the Roman Empire, though it has never become a widely grown crop[ 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. , 46 Title Dictionary of Economic Plants. Publication Author Uphof. J. C. Th. Publisher Weinheim Year 1959 ISBN - Description An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader. , 61 Title A Dictionary of Plants Used by Man. Publication Author Usher. G. Publisher Constable Year 1974 ISBN 0094579202 Description Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader. , 132 Title Fruits of the Earth. Publication Author Bianchini. F., Corbetta. F. and Pistoia. M. Publisher Year ISBN Description Lovely pictures, a very readable book. ]. It is also often used for medicinal purposes and is commonly used as a dwarfing rootstock for pears and some other fruits[ 200 Title The New RHS Dictionary of Gardening. 1992. Publication Author Huxley. A. Publisher MacMillan Press Year 1992 ISBN 0-333-47494-5 Description Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed. ].