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Picea smithiana

Common name:	Morinda Spruce	Family:	Pinaceae
Author:	(Wall.)Boiss.	Botanical references:	11, 200
Synonyms:	Picea morinda (Link.)
Known Hazards:	None known
Range:	E. Asia - Himalayas.
Habitat:	Usually found on N. and W. slopes inhabiting the drier upper areas often in association with silver fir or deodar, 2100 - 3600 metres from Afghanistan to Nepal[146].
Edibility Rating (1-5):	2	Medicinal Rating (1-5):	0

Other Possible Synonyms:	From various places across the web, may not be correct. See below.
	Pinus smithiana[G]
Systematics:	From a USDA Plants Database
	Order: Pinales. Pine family

Physical Characteristics

An evergreen tree growing to 30m by 6m at a slow rate. It is hardy to zone 7 and is frost tender. It is in leaf all year, and the seeds ripen from October to November. 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 Wind. We rate it 2/5 for edibility and 0/5 for medicinal use.

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

Habitats and Possible Locations

Woodland, Canopy.

Edible Uses

Condiment Flowers Gum Inner bark Seed Seedpod Tea.

Young male catkins - raw or cooked. Used as a flavouring[172].
Immature female cones - cooked. The central portion, when roasted, is sweet and syrupy[172].
Inner bark - dried, ground into a powder and then used as a thickener in soups etc or added to cereals when making bread[172]. An emergency food, it is only used when all else fails.
Seed - raw. Too small and fiddly to be worthwhile unless you are desperate[172].
A refreshing tea, rich in vitamin C, can be made from the young shoot tips[172].

Medicinal Uses

Disclaimer

None known

Other Uses

Charcoal Resin Roofing Wood.

The bark is very water resistant and is used for roofing and making water troughs[146, 158].
Small quantities of resin are obtained from between the bark and the wood[146].
Wood - soft to moderately hard. Used in construction, shingles, crates, household purposes etc[146, 272]. It is also valued for its use in the pulp industry to make paper[171]. An indifferent fuel but it yields a fairly good charcoal[158].

Cultivation details

Likes abundant moisture at the roots, if grown in drier areas it must be given a deep moist soil[11]. Tolerates poor peaty soils[200]. Succeeds in wet cold and shallow soils but is not very wind-firm in shallow soils[1]. Succeeds in most sites, including limestone[81]. Prefers a pH between 4 to 6[200]. Dislikes shade[200]. Intolerant of atmospheric pollution[11]. Resists wind exposure to some degree[200].
Most trees are only hardy to zone 8 (tolerating temperatures down to about -5 to -10° c) but selected clones can succeed in zone 7 with temperatures down to -15° c[200].
In some upland areas, especially over granitic or other base-poor soils, growth rate and health have been seriously affected by aluminium poisoning induced by acid rain[200].
Plants are strongly outbreeding, self-fertilized seed usually grows poorly[200]. They hybridize freely with other members of this genus[200].
Difficult to establish because it is sensitive to frost until it is 1.5 metres or more tall, young plants should be given a position sheltered from the early morning sun[11]. Established trees can grow quite vigorously making new growth of 60cm per year for a number of years[185]. Plants in general are slow-growing[1888].
Trees should be planted into their permanent positions when they are quite small, between 30 and 90cm. Larger trees will check badly and hardly put on any growth for several years. This also badly affects root development and wind resistance[200].

Propagation

Seed - stratification will probably improve germination so sow fresh seed in the autumn in a cold frame if possible[80]. Sow stored seed as early in the year as possible in a cold frame[78]. A position in light shade is probably best[78]. Seed should not be allowed to dry out and should be stored in a cool place[80]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse or cold frame for their first winter. They can be planted out into their permanent positions in early summer of the following year, or be placed in an outdoor nursery bed for a year or so to increase in size. They might need protection from spring frosts.
Cuttings of semi-ripe terminal shoots, 5 - 8cm long, August in a frame. Protect from frost. Forms roots in the spring[78].
Cuttings of mature terminal shoots, 5 - 10cm long, September/October in a cold frame. Takes 12 months[78].
Cuttings of soft to semi-ripe wood, early summer in a frame. Slow but sure.

Suppliers

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

Web References

[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic 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 the family Pinaceae.

[CHINA] 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

[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.

[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.

[81] Rushforth. K. Conifers. Christopher Helm 1987 ISBN 0-7470-2801-X
Deals with conifers that can be grown outdoors in Britain. Good notes on cultivation and a few bits about plant uses.

[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.

[171] Hill. A. F. Economic Botany. The Maple Press 1952
Not very comprehensive, but it is quite readable and goes into some a bit of detail about the plants it does cover.

[172] Schofield. J. J. Discovering Wild Plants - Alaska, W. Canada and the Northwest.
A nice guide to some useful plants in that area.

[185] Mitchell. A. F. Conifers in the British Isles. HMSO 1975 ISBN 0-11-710012-9
A bit out of date (first published in 1972), but an excellent guide to how well the various species of conifers grow in Britain giving locations of trees.

[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.

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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