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Myrica nagi

Common name: Box Myrtle Family: Myricaceae
Author: Thunb. Botanical references: 158, 266
Synonyms: Myrica sapida, Myrica integrifolia
Known Hazards: Although no reports of toxicity have been seen for this species, there is a report for some members of this genus that some of the constituents of the wax might be carcinogenic[222].
Range: E. Asia - Himalayas.
Habitat: Drier aspects to 1800 metres[146]. Open, mixed forests on mountain slopes at elevations of 300 - 2500 metres[266].
Edibility Rating (1-5): 2Medicinal Rating (1-5):3

Other Possible Synonyms:From various places across the web, may not be correct. See below.
Decussocarpus nagi[G] Nageia nagi[G,HORTIPLEX] Podocarpus nagi[G]
Other Common Names:From various places around the Web, may not be correct. See below.
Katphala [E], Myrtle [H],
Systematics:From a USDA Plants Database
Order: Myricales. Bayberry family
Other Range Info: From the Ethnobotany Database
India

Physical Characteristics

An evergreen tree growing to 12m. . It is in leaf all year. The flowers are dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required) and are pollinated by Wind. The plant not is self-fertile. It can fix Nitrogen. We rate it 2/5 for edibility and 3/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The plant prefers acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It requires moist soil. The plant can tolerates strong winds but not maritime exposure.

Habitats and Possible Locations

Woodland, Sunny Edge.

Edible Uses

Fruit.

Fruit - raw or cooked[2]. Sweet with a pleasant blend of acid, they are very pleasant eating[193]. About 13mm in diameter[194]. The fruit contains about 12.6% sugar, 1% protein, 0.4% ash[194]. Low in vitamin C, about 4.1mg per 100ml[194]. The fruit does not keep well, only lasting in good condition for 2 - 3 days after picking[194]. Yields from mature trees can be as high as 25kg per year, but are more often around 15.5kg[194].

Medicinal Uses

Disclaimer

Anthelmintic Antirheumatic Antiseptic Aromatic Astringent Carminative Febrifuge Ophthalmic Rubefacient Stimulant.

The bark is antirheumatic, antiseptic, aromatic, astringent, carminative, ophthalmic and stimulant[146, 158, 194, 240, 272]. It has proved useful in the treatment of fevers, asthma and coughs[240]. The juice is applied to treat rheumatism[272]. Mixed with ginger, it is used as a rubefacient in the treatment of cholera[240].
The juice of the bark is taken internally in the treatment of catarrh and headaches, and is applied externally to cuts and wounds[272]. A decoction of the bark is used in the treatment of fevers, asthma and diarrhoea[272]. This decoction is boiled to form a gelatinous mass that is applied as a poultice on sprains[272]. Combined with the bark of Quercus lanata, it is used as a decoction in the treatmnt of dysentery[272].
The juice of the unripe fruit is used as an anthelmintic[272].

Other Uses

Dye Tannin Wax Wood.

A wax covering on the fruit is extracted by scalding the fruit with boiling water and immersing them for a few minutes, the wax floats to the surface and is then skimmed off. The fruit is then boiled in water to extract the wax from the pulp and once more the wax is skimmed off. It is then strained through a muslin cloth and can be used to make aromatic candles. Candles made from this wax are quite brittle but are less greasy in warm weather[213]. They are slightly aromatic and do not smoke when put out, making them much more pleasant to use that wax or tallow candles[213]. The wax is also used in making soaps[213].
A yellow dye is obtained from the bark[146, 272].
The plant is a source of tannin[146]. (Probably the bark or the leaves[K].) The bark is said to contain 60 - 80% tannin[272].
Wood - hard, close-grained. a good fuel[158]. Used mainly for fuel, though it is sometimes used for making poles for construction[272].

Cultivation details

Prefers a moist soil. Grows well in an open position in a well-drained soil in sun or light shade[200]. Thrives in any ordinary garden soil. Prefers a lime-free loamy or peaty soil[1].
We are not sure how hardy this plant will be in Britain, it is unlikely to succeed outside the very mildest areas of the country. There is also some confusion between this species and M. rubra, it is possible that they are the same.
The fruit is sold in local markets in the Himalayas[194]. It ripens over a fairly long period, so is not suitable for commercial cultivation[194].
Plants in this genus are notably resistant to honey fungus[200].
Dioecious, male and female plants must be grown if seed is required.
Many species in this genus have a symbiotic relationship with certain soil micro-organisms, these form nodules on the roots of the plants and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200].

Propagation

Seed - best sown as soon as it is ripe in the autumn in a cold frame. Barely cover the seed and keep it moist. Stored seed germinates more freely if given a 3 month cold stratification and then sown in a cold frame. Germination is usually good[78]. Prick out the seedlings into individual pots when they are large enough to handle and grow on in the cold frame for the first winter. Plant out in late spring or early summer[K].
Cuttings of half-ripe wood, 5 - 8cm with a heel, July/August in a frame. Pot up and overwinter in a cold frame. Fair to good percentage[78].
Cuttings of mature wood in November/December in a frame.
Layering in spring[200].
Division of suckers in the dormant season. Plant them out direct into their permanent positions.

Suppliers

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

Web References

References for Nageia nagi (a possible synonym).

References for the family Myricaceae.

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.

[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.

[193] Low. T. Wild Food Plants of Australia. Angus and Robertson. 1989 ISBN 0-207-14383-8
Well presented, clear information and good photographs. An interesting read for the casual reader as well as the enthusiast

[194] Parmar. C. and Kaushal. M.K. Wild Fruits of the Sub-Himalayan Region. Kalyani Publishers. New Delhi. 1982
Contains lots of information on about 25 species of fruit-bearing plants of the Himalayas, not all of them suitable for cool temperate zones.

[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.

[213] Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books 1980 ISBN 0-449-90589-6
A nice book to read though it is difficult to look up individual plants since the book is divided into separate sections dealing with the different medicinal uses plus a section on edible plants. Common names are used instead of botanical.

[222] Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. 1990 ISBN 0395467225
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.

[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.

[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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