Alnus nepalensis
D.Don
Betulaceae
Alnus boshia Buch.-Ham. ex D.Don
Betula leptophylla Regel
Betula leptostachya Wall.
Clethropsis nepalensis (D.Don) Spach.
Common Name: Nepalese Alder
General Information
Nepalese alder is a fast-growing deciduous or semi-deciduous tree reaching a height of up to 30 metres tall[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. It has a straight bole that is around 60 cm in diameter with occasional specimens up to 2 metres in diameter[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
An excellent agroforestry tree, it is commonly planted to restore land, provide shade for crops, as well as to provide wood for poles, fuel etc[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
This species has a wide distribution. Although some threats have been identified, there are no major range wide threats impacting on the survival of this species, or predicted to in the near future. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338- Title
- IUCN Red List of Threatened Species
- Publication
-
- Author
-
- Website
- http://www.iucnredlist.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].
Known Hazards
None known
Botanical References
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
,
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
266- Title
- Flora of China
- Publication
-
- Author
-
- Website
- http://flora.huh.harvard.edu/china/
- Publisher
- Missouri Botanical Garden Press; St. Louis.
- Year
- 1994
- ISBN
-
- Description
- An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
Range
E. Asia - southern central China, northern India, Nepal, Bangladesh, Myanmar, Thailand, Vietnam.
Habitat
Forests in ravines, on stream banks and occasionally in drier localities, 900 - 2,700 metres in the Himalayas[
146- Title
- A Manual of Indian Timbers.
- Publication
-
- Author
- Gamble. J. S.
- Publisher
- Bishen Singh Mahendra Pal Singh
- Year
- 1972
- ISBN
- -
- Description
- First written in the 19th century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.
]. Riverbanks or village margins, often forming pure stands, at elevations of 200 - 2,800 metres in China[
266- Title
- Flora of China
- Publication
-
- Author
-
- Website
- http://flora.huh.harvard.edu/china/
- Publisher
- Missouri Botanical Garden Press; St. Louis.
- Year
- 1994
- ISBN
-
- Description
- An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
].
Properties
Conservation Status | Least Concern |
Medicinal Rating | |
Other Uses Rating | |
Habit | Semi-deciduous Tree |
Height | 22.00 m |
Growth Rate | Fast |
Pollinators | Wind |
Cultivation Status | Cultivated, Wild |
Cultivation Details
Alnus nepalensis is a plant of the warm temperate to subtropical zones, it can also be grown at higher elevations in tropical areas with high rainfall[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
,
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. It grows best in areas with a mean annual rainfall ranging from 500 - 2,500mm, and an annual average temperature in the range of 19 - 23°c[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. Mature trees tolerate some frost[
]. Plants can withstand a dry season of 4 - 8 months[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
Prefers a heavy soil and a damp situation[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
]. Grows well in heavy clay soils[
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
]. Grows best in deep well-drained loams or loamy soils of alluvial soils, but ranges from gravel to sand to clay[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. Succeeds in very infertile sites[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Grows well in full light but will also tolerate shade[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. The Nepalese alder is reported to tolerate clay, flooding, fog, gravel, sand, shade, slope, water-logging, and weeds[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. It is not tolerant of high winds[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. Prefers a pH in the range of 6 - 8[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
].
A fast growing tree, annual increments of 2.7 metres in height and 2.9 cm in diameter have been recorded in Nepal[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. A mean annual diameter increment of 2 cm is common[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
On good sites, poles and fuelwood can be harvested after 5 years[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. Small-diameter timber can be harvested in less than 10 years[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. Longer rotations are needed for ordinary saw timber[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
The tree coppices after cutting, but successful regrowth seems to depend on seasonal and locality variations, with wet season felling and moist localities being best[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
This species has 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- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Edible Uses
None known
Medicinal
A useful diuretic for reducing swelling of the leg[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
].
The juice of the bark is boiled and the gelatinous liquid applied to burns[
272- Title
- Plants and People of Nepal
- Publication
-
- Author
- Manandhar. N. P.
- Publisher
- Timber Press. Oregon.
- Year
- 2002
- ISBN
- 0-88192-527-6
- Description
- Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
].
Agroforestry Uses:
The trees develop an extensive lateral root system, fix atmospheric nitrogen, and are fast growing. They are planted to give stability to slopes that tend to slip and erode[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. Their seeds have been broadcast to stabilize landslides area[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
They are effectively used to reforest abandoned taungya areas because they can grow as a pioneer in degraded habitats with low fertility soils[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
]. They are also planted on the site of mine spoils to reclaim the land[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
Considerable quantities of nutrients are recycled through the leaf litter. Trees may produce 3 - 6 tonnes/ha of leaf litter annually[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
The tree is interplanted with annual crops such as maize, barley, chilli and pumpkin, it is also used as a shade tree for crops such as Cinchona officinalis and Eletaria subulatum[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
A fast growing, pioneer species, it can become established in open, disturbed areas and help to re-established the right conditions for permanent woodland[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. It is suitable for plantation cultivation in tropical uplands[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. The tree is locally cultivated by West Java Forest Service to reforest eroded slopes under ever-wet climates[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. The tree establishes rapidly on areas subject to landslides, binding the soil with its extensive root system and stabilizing the slope[
272- Title
- Plants and People of Nepal
- Publication
-
- Author
- Manandhar. N. P.
- Publisher
- Timber Press. Oregon.
- Year
- 2002
- ISBN
- 0-88192-527-6
- Description
- Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
].
Other Uses
The bark contains 7% tannin[
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- 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.
], it is used in dyeing and tanning[
11- Title
- Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
- Publication
-
- Author
- Bean. W.
- Publisher
- Murray
- Year
- 1981
- ISBN
- -
- Description
- A classic with a wealth of information on the plants, but poor on pictures.
,
146- Title
- A Manual of Indian Timbers.
- Publication
-
- Author
- Gamble. J. S.
- Publisher
- Bishen Singh Mahendra Pal Singh
- Year
- 1972
- ISBN
- -
- Description
- First written in the 19th century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.
,
272- Title
- Plants and People of Nepal
- Publication
-
- Author
- Manandhar. N. P.
- Publisher
- Timber Press. Oregon.
- Year
- 2002
- ISBN
- 0-88192-527-6
- Description
- Excellent book, covering over 1,500 species of useful plants from Nepal together with information on the geography and peoples of Nepal. Good descriptions of the plants with terse notes on their uses.
]. It is used to deepen the red colour of madder, Rubia cordifolia[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
].
Wood - soft, tough, even grained, rather durable, easily sawn, seasons well and does not warp. It is used to a limited extent in carpentry, house construction, tea boxes, for making furniture, rope bridges etc[
146- Title
- A Manual of Indian Timbers.
- Publication
-
- Author
- Gamble. J. S.
- Publisher
- Bishen Singh Mahendra Pal Singh
- Year
- 1972
- ISBN
- -
- Description
- First written in the 19th century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.
,
158- Title
- Forest Flora of Chakrata, Dehra Dun and Saharanpur.
- Publication
-
- Author
- Gupta. B. L.
- Publisher
- Forest Research Institute Press
- Year
- 1945
- ISBN
- -
- Description
- A good flora for the middle Himalayan forests, sparsly illustrated. Not really for the casual reader.
,
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
]. A very good timber, it deserves to be more widely used[
146- Title
- A Manual of Indian Timbers.
- Publication
-
- Author
- Gamble. J. S.
- Publisher
- Bishen Singh Mahendra Pal Singh
- Year
- 1972
- ISBN
- -
- Description
- First written in the 19th century, but still a classic, giving a lot of information on the uses and habitats of Indian trees. Not for the casual reader.
]. In India the trees are coppiced every two years for fuel[
269- Title
- Handbook of Energy Crops
- Publication
-
- Author
- Duke. J.
- Publisher
- -
- Year
- 1983
- ISBN
- -
- Description
- Published only on the Internet, excellent information on a wide range of both temperate and tropical plants.
].
The wood gives a pulp yield of 47.6%, and bleaching improves the brightness to 76%. It is suitable for the manufacture of high-quality paper[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
The wood has a low calorific value of 18230 kJ/kg. It dries easily, burns well and is an important source of firewood and charcoal[
303- Title
- World Agroforesty Centre
- Publication
-
- Author
-
- Website
- http://www.worldagroforestry.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online database of a huge range of trees giving very good information on each plant - its uses, ecology, identity, propagation, pests etc.
].
Propagation
Seed - best sown in a cold frame as soon as it is ripe and only just covered[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Spring sown seed should also germinate successfully so long as it is not covered[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The seed should germinate in the spring as the weather warms up. When large enough to handle, prick the seedlings out into individual pots. If growth is sufficient, it is possible to plant them out into their permanent positions in the summer, otherwise keep them in pots outdoors and plant them out in the spring.
If you have sufficient quantity of seed, it can be sown thinly in an outdoor seed bed in the spring[
78- Title
- Propagation of Trees, Shrubs and Conifers.
- Publication
-
- Author
- Sheat. W. G.
- Publisher
- MacMillan and Co
- Year
- 1948
- ISBN
- -
- Description
- A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
]. The seedlings can either be planted out into their permanent positions in the autumn/winter, or they can be allowed to grow on in the seed bed for a further season before planting them.
Cuttings of mature wood, taken as soon as the leaves fall in autumn, outdoors in sandy soil.