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Paeonia lactiflora

Common name: Chinese Peony Family: Paeoniaceae
Author: Pall. Botanical references: 74, 200, 266
Synonyms: Paeonia edulis (Salisb.), Paeonia albiflora (Pall.)
Known Hazards: None known
Range: E. Asia - Siberia to Mongolia.
Habitat: Dry open stony slopes, riverbanks and sparse woodland edges[74]. Woods and grasslands at elevations of 400 - 2300 metres in China[266].
Edibility Rating (1-5): 1Medicinal Rating (1-5):3

Other Possible Synonyms:From various places across the web, may not be correct. See below.
P. officinalis Thunb.[H]
Other Common Names:From various places around the Web, may not be correct. See below.
Bai Shao [E], Chin Shao Yao [E], Chinese Peony [H,P,B], Nd [E], Shao Yao [E], Syakuyaku [E],
Epithets:From a Dictionary of Botanical Epithets
flora = flowered lactiflora = milky flower
Systematics:From a USDA Plants Database
Order: Dilleniales. Peony family
Other Range Info: From the Ethnobotany Database
China Japan

Physical Characteristics

Perennial growing to 0.75m by 0.5m . It is hardy to zone 6. It is in flower in June, and the seeds ripen in August. The scented flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. The plant is self-fertile. We rate it 1/5 for edibility and 3/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil. The plant prefers acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It requires dry or moist soil.

Habitats and Possible Locations

Woodland, Sunny Edge, Dappled Shade, Shady Edge.

Edible Uses

Root Seed Stem.

Root - cooked and eaten in a broth[2, 4, 46, 183].
Stems - cooked[177].
Seed - powdered and mixed with tea[4, 183].

Medicinal Uses

Disclaimer

Alterative Analgesic Anodyne Antibacterial Antiinflammatory Antiseptic Antispasmodic Astringent Carminative Diuretic Emmenagogue Expectorant Febrifuge Hypotensive Nervine Tonic Women's complaints.

The root of Chinese peony has been used for over 1,500 years in Chinese medicine. It is known most widely as one of the herbs used to make 'Four Things Soup', a woman's tonic, and it is also a remedy for gynaecological problems and for cramp, pain and giddiness[254]. When the whole root is harvested it is called Chi Shao Yao, if the bark is removed during preparation then it is called Bai Shao Yao[250].
The root is alterative, analgesic, anodyne, antibacterial, anti-inflammatory, antiseptic, antispasmodic, astringent, carminative, diuretic, emmenagogue, expectorant, febrifuge, hypotensive, nervine and tonic[176, 218, 238, 279]. The most important ingredient medicinally in the root is paeoniflorin, which has been shown to have a strong antispasmodic effect on mammalian intestines, it also reduces blood pressure, reduces body temperature caused by fever and protects against stress ulcers[250]. It is taken internally in the treatment of menstrual disorders, injuries, high blood pressure, pre-menstrual tension and liver disorders[238]. It should only be used under the supervision of a qualified practitioner and should not be prescribed for pregnant women[238]. The roots are harvested in the autumn from cultivated plants that are 4 - 5 years old and are boiled before being sun-dried for later use[238, 250]. The roots of wild plants are harvested in the spring or (preferably) in the autumn and are sun-dried for later use[238].
The root is an ingredient of 'Four Things Soup', the most widely used woman's tonic in China[254]. The other species used are Rehmannia glutinosa, Ligusticum wallichii and Angelica sinensis[254].
A tea made from the dried crushed petals of various peony species has been used as a cough remedy, and as a treatment for haemorrhoids and varicose veins[250].

We have a more details factsheet on the history and medicinal use of this plant. Email webmaster@pfaf.org for details.

Other Uses

None known

Cultivation details

An easily grown and undemanding plant[250], it does best in a deep rich soil, preferably neutral or slightly alkaline[1], doing quite well in sun or light shade[1, 200]. Plants are tolerant of a wide range of soil conditions, but will not survive if the soil becomes waterlogged or is too dry[250]. This species is lime tolerant[200]. Plants grown on sandy soils tend to produce more leaves and less flowers, whilst those growing on clay take longer to become established but produce better blooms[250]. Prefers a rich heavy soil that is well-drained but remains moist in the summer[187].
The species is hardy to about -25° c, but there are many named varieties some of which are hardy to about -50° [187].
Cultivated as a medicinal plant in China[178].
A very ornamental[1] and long-lived plant, surviving in gardens for 50 years or more[200]. Many hundreds of named varieties have been developed for their ornamental value[250].
Members of this genus are rarely if ever troubled by browsing deer or rabbits[233].
A greedy plant, inhibiting the growth of nearby plants, especially legumes[54].
Strongly resents root disturbance, taking some time to recover if it is transplanted[1]. Plants should be planted with their crowns no more than 3cm below soil level. If planted deeper they do not flower so well[187].
Peony species are usually self-fertile, though they will also hybridise with other species if these flower nearby at the same time[250].
Plants take 4 - 5 years to flower from seed[200]. They generally breed true from seed[1].

Propagation

Seed - best sown as soon as it is ripe in a cold frame[250]. When sown fresh, the seed produces a root about 6 weeks after sowing with shoots formed in the spring[200]. Stored seed is much slower, it should be sown as soon as possible in a cold frame but may take 18 months or more to germinate[200]. The roots are very sensitive to disturbance, so many growers allow the seedlings to remain in their pots for 2 growing seasons before potting them up. This allows a better root system to develop that is more resilient to disturbance[250]. If following this practice, make sure you sow the seed thinly, and give regular liquid feeds in the growing season to ensure the plants are well fed. We usually prick out the seedlings into individual pots as soon as they are large enough to handle, and then grow them on in a cold frame for at least two growing seasons before planting them out when they are in growth in the spring[K].
Division with great care in spring or autumn. Each portion must have a leaf bud. If the lifted root is stood in shade for several hours it becomes less brittle and easier to divide[200]. Divisions that have several buds will usually flower in the second year, but those that only have one or two buds will take a number of years before they have grown sufficiently to flower[250].

Scent

Flowers: Fresh
The flowers are perfumed[245].

Cultivars

''
There are some named forms for this species, but these have been developed for their ornamental value and not for their other uses. Unless you particularly require the special characteristics of any of these cultivars, we would generally recommend that you grow the natural species for its useful properties. We have, therefore, not listed the cultivars in this database[K].

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

Web References

References for Paeonia albiflora (a possible synonym). References for Paeonia edulis (a possible synonym).
  • [H] Details of Scandanavian and European Common names in Henriette's names database

References for the family Paeoniaceae.

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[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]).

[2] Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972 ISBN 0-486-20459-6
Lots of entries, quite a lot of information in most entries and references.

[4] Grieve. A Modern Herbal. Penguin 1984 ISBN 0-14-046-440-9
Not so modern (1930's?) but lots of information, mainly temperate plants.

[46] Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959
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.

[54] Hatfield. A. W. How to Enjoy your Weeds. Frederick Muller Ltd 1977 ISBN 0-584-10141-4
Interesting reading.

[74] Komarov. V. L. Flora of the USSR. Israel Program for Scientific Translation 1968
An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers.

[176] Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, Los Angeles 1985
A very good Chinese herbal.

[177] Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984 ISBN 3874292169
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.

[178] Stuart. Rev. G. A. Chinese Materia Medica. Taipei. Southern Materials Centre
A translation of an ancient Chinese herbal. Fascinating.

[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.

[187] Phillips. R. & Rix. M. Perennials Volumes 1 and 2. Pan Books 1991 ISBN 0-330-30936-9
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.

[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.

[218] Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. 1985 ISBN 0-917256-20-4
Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.

[233] Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990 ISBN 0 460 86048 8
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.

[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.

[245] Genders. R. Scented Flora of the World. Robert Hale. London. 1994 ISBN 0-7090-5440-8
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.

[250] Page. M. The Gardener's Guide to Growing Peonies. David & Charles. Newton Abbot. 1997 ISBN 0 7153 0531 X
A nice little book on the genus, giving information on their cultivation and a little info on plant uses.

[254] Chevallier. A. The Encyclopedia of Medicinal Plants Dorling Kindersley. London 1996 ISBN 9-780751-303148
An excellent guide to over 500 of the more well known medicinal herbs from around the world.

[266] Flora of China 1994
On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.


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