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Hypericum patulum

Common name:		Family:	Hypericaceae
Author:	Thunb.	Botanical references:	11, 146, 200
Synonyms:
Known Hazards:	None known
Range:	E. Asia - W. China, Japan, Himalayas.
Habitat:	Shady ravines, sometimes on rocks[158]. Open hillsides, 1500 - 2400 metres in the Himalayas[146].
Edibility Rating (1-5):	0	Medicinal Rating (1-5):	1

Other Possible Synonyms:	From various places across the web, may not be correct. See below.
	H. degeneri[B,P] H. parvulum[B,P]
Other Common Names:	From various places around the Web, may not be correct. See below.
	Sierra Madre St John's-wort [B], Sierra Madre St Johnswort [P],
Epithets:	From a Dictionary of Botanical Epithets
	patulum = spreading;
Other Range Info:	From the Ethnobotany Database
	China; India; Indochina

Physical Characteristics

An evergreen shrub growing to 1m by 1m . It is hardy to zone 6. It is in leaf all year, in flower from August to October, and the seeds ripen from September to November. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. The plant is self-fertile. We rate it 0/5 for edibility and 1/5 for medicinal use.

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 can grow in semi-shade (light woodland) or no shade. It requires moist soil.

Habitats and Possible Locations

Hedge, Woodland, Sunny Edge, Dappled Shade.

Edible Uses

None known

Medicinal Uses

Disclaimer

Aromatic; Stimulant.

The seeds are aromatic and stimulant[240].

Other Uses

Hedge; Wood.

Plants are sometimes grown as a hedge[146].
Wood - close grained, moderately hard[146].

Cultivation details

Easily grown in any reasonably good well-drained but moisture retentive soil[1]. Succeeds in sun or semi-shade but flowers better in a sunny position[200].
This species is only hardy to about -5°c but plants can resprout from the base if they are cut back by cold[184].
Plants in this genus are notably resistant to honey fungus[200].

Propagation

Seed - sow spring in a greenhouse and only just cover the seed. Germination usually takes place within 1 - 3 months at 10°c. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Cuttings of half-ripe wood 10 - 12 cm with a heel, July/August in a frame. Plant out in the following spring[200].
Cuttings of mature wood, 12 - 17cm with a heel, October/November in a sheltered position outdoors. Plants root by the spring. Good percentage[78].

Suppliers

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

PFAF Web Pages

This plant is mentioned in the following web pages

Web References

[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.
[PHARM] Phytochemical Data (common names, uses, countries) from Dr Duke's Phytochemical Database.
[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for Hypericum parvulum (a possible synonym).

[B] Data (Latin & Common names, other references) from the BONAP's Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.

See the PFAF Links Pages for other sources.

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

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.

[78] Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co 1948
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.

[146] Gamble. J. S. A Manual of Indian Timbers. Bishen Singh Mahendra Pal Singh 1972
Written last century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.

[158] Gupta. B. L. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press 1945
A good flora for the middle Himalayan forests, sparsly illustrated. Not really for the casual reader.

[184] Phillips. R. & Rix. M. Shrubs. Pan Books 1989 ISBN 0-330-30258-2
Excellent photographs and a terse description of 1900 species and cultivars.

[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.

[240] Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. 1986
Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.

Readers Comments

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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
WEB search engine by Rich Morris - Home Page- Contact Info
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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.