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Useful Tropical Plants

Averrhoa carambola

L.

Oxalidaceae

+ Synonyms

Averrhoa acutangula Stokes.

Common Name: Carambola

Averrhoa carambola
Ripe fruits
Photograph by: Landahlauts
Creative Commons License
Averrhoa carambola Averrhoa carambola Averrhoa carambola Averrhoa carambola Averrhoa carambola Averrhoa carambola Averrhoa carambola Averrhoa carambola

General Information

Carambola is a small but fast growing, much-branched, evergreen tree usually growing 3 - 5 metres tall but sometimes reaching a height of 10 metres. The short bole can be 15cm in diameter[
335
Title
Perennial Edible Fruits of the Tropics : an Inventory
Publication
 
Author
Martin, F. W.; Campbell, C. W.; Rubertbe, R. M.
Publisher
U.S. Dept. of Agriculture, Agricultural Research Service
Year
1987
ISBN
 
Description
A booklet giving terse details of almost 300 species of edible fruits, plus regional lists of Botanical and Common names for over 2,500 less well-known edible fruits of the tropics.
,
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
A multipurpose tree providing a very popular fruit as well as having a range of medicinal and other uses. It is often cultivated for its fruit, but mainly in gardens, and is generally only sold in local markets because the fruit is extremely perishable and therefore difficult to get to more distant markets[
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 plant is also often grown as an ornamental[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

Known Hazards

None known

Botanical References

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.

Range

E. Asia - Malaysia.

Habitat

Humid forests and woodland on sandy loam[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
].

Properties

Edibility Rating *  *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitEvergreen Tree
Height4.00 m
Growth RateMedium
PollinatorsBees, Flies
Self-fertileNo
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Plants grow best in the hot humid tropics up to an elevation of around 1,200 metres, though they will tolerate some cool weather and can be grown in subtropical areas[
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.
,
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.
,
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It grows best in areas where annual daytime temperatures are within the range 24 - 30°c, but can tolerate 5 - 39°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Mature plants can be killed by temperatures of -2°c or lower, although young growth is badly damaged at -1°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It prefers a mean annual rainfall in the range 1,200 - 2,000mm, but tolerates 600 - 3,000mm[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
Prefers a position with some shade[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Prefers a well-drained soil, plants are intolerant of water-logging[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
]. Plants are tolerant of a wide range of soils so long as they are slightly acid[
335
Title
Perennial Edible Fruits of the Tropics : an Inventory
Publication
 
Author
Martin, F. W.; Campbell, C. W.; Rubertbe, R. M.
Publisher
U.S. Dept. of Agriculture, Agricultural Research Service
Year
1987
ISBN
 
Description
A booklet giving terse details of almost 300 species of edible fruits, plus regional lists of Botanical and Common names for over 2,500 less well-known edible fruits of the tropics.
]. This somewhat contradicts the reports that the plant prefers a pH in the range 5.5 - 6.5, tolerating 5 - 8.5[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Requires a position sheltered from strong winds[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. Plants can tolerate dry periods and some wind if it is not too cold[
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.
].
When young, the carambola is delicate and requires careful attention[
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.
]. Because it is a fast-growing tree, it requires pruning and thinning of excess fruit at an early stage[
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.
].
Flowering continues throughout the year and fruit is available most of the year[
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 fruit can be very variable when plants are grown from seed, with the best forms being large and sweet and others being small and tart[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
]. Three crops per year can be obtained[
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.
].
Seedling varieties should start to crop in 3 - 8 years, whilst selected grafted varieties can start in only 1-2 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.
]. Plants can crop prodigiously[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
], and yields of up to 900 kg/year are common for 10-year-old trees[
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.
].
There are many named varieties[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
].
Some Brazilian cultivars have a very high content of vitamin C as well as an applicable amount of provitamin A[
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.
].

Edible Uses

Fruit - raw. The fruit is crisp and juicy with a waxy yellow skin when ripe[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
]. The best forms are delicious on their own, they also go very well in fruit salads, juiced and mixed with other fruits etc[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
]. The fruit flavour is enhanced by peeling off the ‘wing’ edges, which removes most of the oxalic acid[
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 quince-like fragrance[
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.
]. Plants can produce fruit all year round[
296
Title
Tropical Food Gardens
Publication
 
Author
Norrington. L.
Publisher
Bloomings Books (Melbourne)
Year
2001
ISBN
1-876473-41-x
Description
Excellent little book giving some basic information on a range of plants.
]. Fruit quality is variable, though they are normally juicy. Sour forms, and slightly immature fruits, are pickled or made into a relish[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
]. The orange-yellow fruit is a large, indehiscent berry, 5-8 cm long with a characteristic shape in cross-section resembling a 5-pointed star[
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 fruit is up to 12.5cm x 6cm[
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.
].

Flowers - raw[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
]. An acid flavour, they are added to salads[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
]. They can also be made into conserves[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
].

Leaves - raw or cooked[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
]. An acid flavour, they are used as a sorrel substitute[
301
Title
Cornucopia II
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications, California.
Year
1998
ISBN
0-9628087-2-5
Description
The second edition of an excellent guide to the edible uses of plants, though it does not give any details of cultivation etc.
].

Medicinal

The fruit can be a laxative on account of the oxalic acid it contains[
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 is also used in traditional medicine for skin disorders and fevers[
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.
,
348
Title
Medicinal Plants of the Guianas
Publication
 
Author
DeFilipps, R. A.; Maina, S. L.; & Crepin, J.
Website
http://botany.si.edu/bdg/medicinal/index.html
Publisher
Smithsonian Museum
Year
0
ISBN
 
Description
A down-loadable PDF document of a book in pre-publication awaiting illustration. An excellent, if rather terse, guide to the traditional medicinal uses of the plants of the region
]. It is valued by Chinese communities as a remedy for high blood pressure, whilst it is also said to reduce blood sugar levels and so is of help to diabetics[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
].

The flowers are used to relieve coughs[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
].

The leaves are used to treat rheumatism[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
].

The seed is emmenagogue, galactagogue and abortifacient[
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.
]. The powdered seed is a good anodyne for treating asthma, colic and jaundice[
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

In some countries, the fruit juice is used to remove stains, for example iron rust from linen cloth[
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 can also be used for polishing brass. The fresh juice is an effective stain remover[
307
Title
Tropical and Subtropical Trees - A Worldwide Encyclopaedic Guide.
Publication
 
Author
Barwick. M.
Publisher
Thames & Hudson, London
Year
2004
ISBN
0-500-51181-0
Description
A superb book, very concise and well written, giving a wealth of information on 400 or more species including descriptions, habitat, cultivation details and plant uses. A wealth of colour photographs bring each plant vividly to life.
,
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].

Unripe fruits contain potassium oxalate, which is used in dyeing[
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 whitish wood is soft. Generally only available in small dimensions, it is sometimes used for timber in construction and for making small implements, furniture etc[
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.
,
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.
,
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
The wood is a suitable candidate for firewood[
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 - sow in a nursery seedbed and transplant into individual containers when large enough to handle. They should be ready to plant out when around 6 - 12 months old[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]. The seed has limited viability. Cool temperatures damage the seeds. Viability can be maintained for 6 months with partially dried seeds at 5°c[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
Greenwood cuttings
Budding on to 12 month old seedlings[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]
Grafting
Layering. This method can produce fruiting plants within 10 months[
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.
].

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