Uses
Toxic parts
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.
Edible uses
Notes
The seed is used in China as a flavouring in confectionery and some special dishes. They are somewhat bitter due to the presence of prussic acid so should be used in strict moderation[1][2].
Fruit[2]. The fruit is about 3cm in diameter and contains one large seed[3].
Fruit
Seed
Material uses
Used as a disease-resistant low-chill rootstock for the cultivated peach, Prunus persica[2].
A green dye can be obtained from the leaves[4].
A dark grey to green dye can be obtained from the fruit[4].Unknown part
Medicinal uses(Warning!)
The seed is analgesic, antiasthmatic, anticoagulant, antitussive, aperient, emollient and haemolytic[5]. It s used in the treatment of amenorrhoea, dysmenorrhoea, traumatic pain due to blood stasis, constipation of aged and debilitated patients, coughs and asthma[5].
The seed contains 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[6].
Unknown part
Ecology
Ecosystem niche/layer
Ecological Functions
Rootstock
Forage
Nothing listed.
Shelter
Nothing listed.
Propagation
Seed - requires 2 - 3 months cold stratification and is best sown in a cold frame as soon as it is ripe[3]. Sow stored seed in a cold frame as early in the year as possible[3]. Protect the seed from mice etc. The seed can be rather slow, sometimes taking 18 months to germinate[7]. 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[8][3]. Softwood cuttings from strongly growing plants in spring to early summer in a frame[3].
Layering in spring.Practical Plants is currently lacking information on propagation instructions of Prunus davidiana. Help us fill in the blanks! Edit this page to add your knowledge.
Cultivation
Thrives in a well-drained moisture-retentive loamy soil[8][3]. Prefers some lime in the soil but is likely to become chlorotic if too much lime is present[9]. Succeeds in sun or partial shade though it fruits better in a sunny position[8][3].
There are some named varieties selected for their ornamental value[3]. Most members of this genus are shallow-rooted and will produce suckers if the roots are damaged[6]. Plants flower very early in the year and the flowers are often damaged by late frosts[10].
Plants in this genus are notably susceptible to honey fungus[3].Crops
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Prunus davidiana. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Prunus davidiana.
Descendants
Cultivars
Varieties
None listed.
Subspecies
None listed.
Full Data
This table shows all the data stored for this plant.
Taxonomy
Binomial name
Prunus davidiana
Genus
Prunus
Family
Rosaceae
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Environment
Ecosystems
Native Climate Zones
None listed.
Adapted Climate Zones
None listed.
Native Geographical Range
None listed.
Native Environment
None listed.
Ecosystem Niche
Root Zone Tendancy
None listed.
References
- ? 1.01.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
- ? 2.02.12.22.32.4 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
- ? 3.003.013.023.033.043.053.063.073.083.093.10 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
- ? 4.04.14.2 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
- ? 5.05.15.2 Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, Los Angeles (1985-00-00)
- ? 6.06.16.2 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
- ? Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press ISBN 0942375009 (1987-00-00)
- ? 8.08.18.28.3 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
- ? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
- ? Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. ISBN 0-86318-386-7 (1990-00-00)
- ? [Flora of China] (1994-00-00)
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