Although no specific mention has been seen for this species, it belongs to a genus where most, if not all members of the genus produce hydrogen cyanide, a poison that gives almonds their characteristic flavour. This toxin is found mainly in the leaves and seed and is readily detected by its bitter taste. It is usually present in too small a quantity to do any harm but any very bitter seed or fruit should not be eaten. In small quantities, hydrogen cyanide has been shown to stimulate respiration and improve digestion, it is also claimed to be of benefit in the treatment of cancer. In excess, however, it can cause respiratory failure and even death.
Range
Europe to western and central Asia.
Habitat
Thickets and dry grassland[50]. Forest-steppes and steppe zone, broad-leaved forest margins, shrubby thickets, steppes and open dry slopes in Tibet[266].
Edibility Rating
3 (1-5)
Medicinal Rating
1 (1-5)
Physical Characteristics
A decidious Shrub growing to 1m.
It is hardy to zone 4. It is in flower in May, and the seeds ripen from July to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.
The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil.
The plant prefers acid, neutral and basic (alkaline) soils.
It cannot grow in the shade.
It requires dry or moist soil.
Fruit - raw or cooked. A cherry-like flavour but very harsh and acid[11, 105]. A tart flavour, it can also be made into preserves or dried for later use[183]. The fruit is about 15mm in diameter and contains one large seed[200].
Seed - raw or cooked. Do not eat the seed if it is too bitter - see the notes above on toxicity.
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants.
Always seek advice from a professional before using a plant medicinally.
Although no specific mention has been seen for this species, all members of the genus contain amygdalin and prunasin, substances which break down in water to form hydrocyanic acid (cyanide or prussic acid). In small amounts this exceedingly poisonous compound stimulates respiration, improves digestion and gives a sense of well-being[238].
A green dye can be obtained from the leaves[168].
A dark grey to green dye can be obtained from the fruit[168].
Cultivation details
Thrives in a well-drained moisture-retentive loamy soil, growing well on limestone[11, 200]. Prefers some lime in the soil but is likely to become chlorotic if too much lime is present[1]. Requires a sunny position[11, 45].
Trees are said to have withstood temperatures down to -45°c in their native habitat[183].
Most members of this genus are shallow-rooted and will produce suckers if the roots are damaged[238].
Plants in this genus are notably susceptible to honey fungus[200].
Propagation
Seed - requires 2 - 3 months cold stratification and is best sown in a cold frame as soon as it is ripe[200]. Sow stored seed in a cold frame as early in the year as possible[200]. Protect the seed from mice etc. The seed can be rather slow, sometimes taking 18 months to germinate[113]. Prick out the seedlings into individual pots when they are large enough to handle. Grow them on in a greenhouse or cold frame for their first winter and plant them out in late spring or early summer of the following year.
Cuttings of half-ripe wood with a heel, July/August in a frame[113].
Softwood cuttings from strongly growing plants in spring to early summer in a frame.
Layering in spring.
Division of suckers during the dormant season. They can be planted out direct into their permanent positions.
Links
References
[1] F. Chittendon.RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951 Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[11] Bean. W.Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray 1981 A classic with a wealth of information on the plants, but poor on pictures.
[45] Polunin. O.Flowers of Greece and the Balkans. Oxford University Press 1980 ISBN 0-19-217626-9 A good pocket flora, it also lists quite a few plant uses.
[50] ?Flora Europaea Cambridge University Press 1964 An immense work in 6 volumes (including the index). The standard reference flora for europe, it is very terse though and with very little extra information. Not for the casual reader.
[105] Tanaka. T.Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976 The most comprehensive guide to edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
[113] Dirr. M. A. and Heuser. M. W.The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press 1987 ISBN 0942375009 A very detailed book on propagating trees. Not for the casual reader.
[168] Grae. I.Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974 ISBN 0-02-544950-8 A very good and readable book on dyeing.
[183] Facciola. S.Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990 ISBN 0-9628087-0-9 Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
[200] Huxley. A.The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5 Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[238] Bown. D.Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995 ISBN 0-7513-020-31 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.
[266] Flora of China 1994 On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
Readers Comments
Plants for a Future does not verify the accuracy of reader comments,
use at your own risk. In particular
Plants For A Future can not take any responsibility for any adverse effects from the use of plants.
You should always consult a professional before using plants medicinally.
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