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Euphorbia sieboldiana

Common name:		Family:	Euphorbiaceae
Author:	C.Morren.&Decne.	Botanical references:	58, 275
Synonyms:
Known Hazards:	The sap contains a latex which is toxic on ingestion and highly irritant externally, causing photosensitive skin reactions and severe inflammation, especially on contact with eyes or open cuts. The toxicity can remain high even in dried plant material[200]. Prolonged and regular contact with the sap is inadvisable because of its carcinogenic nature[214].
Range:	E. Asia - China, Japan.
Habitat:	Grassy places and thickets in lowland and mountains all over Japan[58]. Forest floors or forest margins, or marshes on lowland, hills or mountains[275].
Edibility Rating (1-5):	1	Medicinal Rating (1-5):	2

Other Common Names:	From various places around the Web, may not be correct. See below.
	Kan Sui [E],
Systematics:	From a USDA Plants Database
	Order: Euphorbiales. Spurge family
Other Range Info:	From the Ethnobotany Database
	China

Physical Characteristics

Perennial growing to 0.3m. . It is in flower from April to July. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by Insects. We rate it 1/5 for edibility and 2/5 for medicinal use.

The plant prefers light (sandy) and medium (loamy) 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.

Habitats and Possible Locations

Woodland, Cultivated Beds, Sunny Edge, Dappled Shade.

Edible Uses

Leaves.

Stems and leaves - cooked. They are boiled, soaked in water, squeezed and then eaten[177]. Caution is advised, see the notes on toxicity above.

Medicinal Uses

Disclaimer

Diuretic; Laxative.

The roots are diuretic and laxative[147]. They are crushed and swallowed with water in the treatment of schistosomiasis-caused ascites, oedema and constipation[147]. This plant is poisonous and should be used with caution, preferably only under the supervision of a qualified herbalist[K].

Other Uses

None known

Cultivation details

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. It is a polymorphic species[58]. Chinese and Korean plants to which the name, Euphorbia sieboldiana has been applied, differ from Japanese one in irregularly toothed but not ciliated lobes of involucres. Moreover, E. sieboldiana in Japan includes three or more well distinct forms which are easily distinguished each other in morphology of rhizomes, leaves and bracteoles and have different distributions and habitats. These may be recognized as distinct species, but further studies are desirable[275]. The following notes are based on the general needs of the genus.
Prefers a light well-drained moderately rich loam in an open position[200]. Succeeds in dry soils[1].
Hybridizes with other members of this genus[200]. The ripe seed is released explosively from the seed capsules[200].
Members of this genus are rarely if ever troubled by browsing deer or rabbits[233].
This genus has been singled out as a potential source of latex (for making rubber) for the temperate zone, although no individual species has been singled out[141].

Propagation

Seed - sow spring in a shaded cold frame[200]. Germination usually takes place within 2 - 3 weeks at 20°c.

Suppliers

Plants For A Future is working with the following groups to try and make these plants easily available. Parts of the proceeds will be donated to so please mention us when ordering.

Wildwood Nurseries: Lower Manor Cottage
Thornbury
Holsworthy
Devon
EX22 7DD
Email: lorna@macace.co.uk
Phone 01409 261324 Fax 01409 261324
Distribution: UK
How to order: Direct from Wildwood by email/phone
Last Updated: March 03
Item: Euphorbia amygdaloides (wood spurge)

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

Web References

[H] Details of Scandanavian and European Common names in Henriette's names database
[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for the family Euphorbiaceae.

[CHINA] Draft Data Very detailed botanical/identification info. from the Flora of China.

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]).

[58] Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution 1965
The standard work. Brilliant, but not for the casual reader.

[141] Carruthers. S. P. (Editor) Alternative Enterprises for Agriculture in the UK. Centre for Agricultural Strategy, Univ. of Reading 1986 ISBN 0704909820
Some suggested alternative commercial crops for Britain. Readable. Produced by a University study group.

[147] ? A Barefoot Doctors Manual. Running Press ISBN 0-914294-92-X
A very readable herbal from China, combining some modern methods with traditional chinese methods.

[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.

[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.

[214] Matthews. V. The New Plantsman. Volume 1, 1994. Royal Horticultural Society 1994 ISBN 1352-4186
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.

[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.

Readers Comments

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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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We make no claims of magical effects or supernatural powers for any item in this catalog. In spite of legendary attributes or occult and craft tradition, such items are offered as curios only and beliefs concerning their magical effectiveness are related only for historical interest.