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Fraxinus chinensis rhynchophylla

Common name: Hua Qu Liu Family: Oleaceae
Author: (Hance.)Hemsl. Botanical references: 11, 200, 266
Synonyms:  
Known Hazards: None known
Range: E. Asia - China, Japan, Korea.
Habitat: Woodland and thickets to 3000 metres in W. China[109]. Slopes, along rivers, roadsides, below 1500 metres[266].
Edibility Rating (1-5): 0Medicinal Rating (1-5):2

Systematics:From a USDA Plants Database
Order: Scrophulariales. Olive family

Physical Characteristics

A decidious tree growing to 25m. It is hardy to zone 6. It is in flower in June. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Wind. We rate it 0/5 for edibility and 2/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires moist soil. The plant can tolerates strong winds but not maritime exposure. It can tolerate atmospheric pollution.

Habitats and Possible Locations

Woodland, Canopy.

Edible Uses

None known

Medicinal Uses

Disclaimer

Analgesic Antiinflammatory Antitussive Astringent Diuretic Expectorant Stomachic.

The bark is analgesic, anti-inflammatory, antitussive, astringent, diuretic, expectorant and stomachic[176, 218, 238]. It controls bacterial infections and coughs[238]. It is used in the treatment of apoplexy, liver diseases, diarrhoea, dysentery, eye diseases such as cataracts, cough and asthma[176, 279].
The bark contains aesculin, this has anti-inflammatory, anticoagulant and analgesic actions[176].
The bark also contains fraxetin. This has an inhibitory effect on the central nervous system, is a stronger and safer anodyne than aspirin and has some antibacterial activity[176].

Other Uses

Weather protection Wood.

The plant (extract?) is said to be used as a barrier to protect the skin from ultra-violet light[176].
The wood is used for cabinet making[266].

Cultivation details

Prefers a deep loamy soil, even if it is on the heavy side[1, 200]. Most members of this genus are gross feeders and require a rich soil[11, 200]. Plants succeed when growing in exposed positions[200] and also in alkaline soils[11]. They tolerate atmospheric pollution[200].
This sub-species grows well in Britain and is much more common in cultivation than F. chinensis[11, 200].
This species might be dioecious, in which case male and female plants must be grown if seed is required.

Propagation

The seed is best harvested green - as soon as it is fully developed but before it has fully dried on the tree - and can then be sown immediately in a cold frame[80]. It usually germinates in the spring[80]. Stored seed requires a period of cold stratification and is best sown as soon as possible in a cold frame[200]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for their first winter. Plant them out into their permanent positions or a nursery bed in late spring or early summer of the following year.
If you have sufficient seed then it is possible to sow it directly into an outdoor seedbed, preferably in the autumn. Grow the seedlings on in the seedbed for 2 years before transplanting either to their permanent positions or to nursery beds.

Suppliers

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

Web References

References for the family Oleaceae.

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.

[80] McMillan-Browse. P. Hardy Woody Plants from Seed. Grower Books 1985 ISBN 0-901361-21-6
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.

[109] Wilson. E. H. Plantae Wilsonae.
Details of the palnts collected by the plant collector E. H. Wilson on his travels in China. Gives some habitats. Not for the casual reader.

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

[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.

[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.


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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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