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Useful Tropical Plants

Citrus maxima

(Burm.) Merr.

Rutaceae

+ Synonyms

Aurantium corniculatum Mill.

Aurantium decumana (L.) Mill.

Aurantium distortum Mill.

Aurantium maximum Burm.

Aurantium vulgare (Risso) M. Gómez

Citrus aurantiifolia murgetana Garcia Lidón et al.

Citrus aurantium aurantiifolia (Christm.) Guillaumin

Citrus aurantium crassa Risso

Citrus aurantium daidai Makino

Citrus aurantium decumana (L.) Tanaka

Citrus aurantium decumana L.

Citrus aurantium dulcis Hayne

Citrus aurantium fetifera Risso

Citrus aurantium grandis (L.) M.Hiroe

Citrus aurantium grandis L.

Citrus aurantium lusitanica Risso

Citrus aurantium vulgaris (Risso) Risso & Poit.

Citrus costata Raf.

Citrus decumana L.

Citrus grandis (L.) Osbeck

Citrus humilis (Mill.) Poir.

Citrus hystrix acida Engl.

Citrus obovoidea Yu.Tanaka

Citrus pompelmos Risso

Citrus sabon Siebold

Citrus sabon Siebold ex Hayata

Citrus sinensis brassiliensis Tanaka

Citrus sinensis crassa (Risso) Rivera, et al.

Citrus sinensis fetifera (Risso) Rivera, et al.

Citrus sinensis lusitanica (Risso) Rivera, et al.

Citrus sinensis sanguinea (Engl.) Engl.

Citrus sinensis sekkan Hayata

Citrus sinensis suntara (Engl.) Engl.

Citrus yamabuki Yu.Tanaka

Common Name: Pummelo

Citrus maxima
Fruit cut open to show the flesh and seeds
Photograph by: North Carolina State University Herbarium
Public Domain
Citrus maxima Citrus maxima Citrus maxima Citrus maxima Citrus maxima Citrus maxima

General Information

Citrus maxima is a low-branching, evergreen tree growing 5 - 10 metres tall with occasional specimens up to 15 metres[
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 spreading branches bear spines up to 5cm long, though there are some forms in cultivation that are free of spines[
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 widely cultivated for its edible fruit in tropical and subtropical regions and, even if the fruit is of inferior quality, the tree may still be grown for its various medicinal applications[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
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 an especially popular fruit in Thailand where a range of excellent quality cultivars have been developed[
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.
]. These forms are usually small trees with a spreading habit; fruit with thin rind and firm, crisp flesh, not very juicy; fruit often seedless or with shrivelled seed[
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.
].

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.
,
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 - Malaysia.

Habitat

Not known in a truly wild situation[
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

Edibility Rating *  *  *
Medicinal Rating *
Other Uses Rating *
HabitEvergreen Tree
Height6.00 m
Cultivation StatusCultivated

Cultivation Details

Three main climates are suitable for commercial citrus production - tropical climates, subtropical with winter rain such as in the Mediterranean and semitropical with summer rainfall as found in Florida and southern Brazil[
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.
]. The optimal temperatures for citrus cultivation range between 25 - 30°c, with the coldest month having an average minimum of at least 15°c[
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.
]. Growth generally ceases below 13°c and above 38°c[
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.
]. If there are dry periods of more than three months, then irrigation will be necessary[
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.
]. In the production centres of Thailand mean monthly temperatures are about 25 - 30°c with a few cooler (and dry) months; the dry season lasts for 3 - 4(-5) months and annual rainfall is about 1,500 - 1,800mm[
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 crop is not grown commercially above elevations of 400 metres[
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 deep, well-drained but moisture-retentive loamy soil in full sun[
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.
]. Prefers a pH in the range 5 - 6[
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.
].
In the tropics the trees flower 2 - 4 times per year, mainly in conjunction with shoot growth flushes[
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 main flowering period follows the onset of the monsoon rains, unless it is brought forward by irrigation[
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 load of growing fruit limits fruit set from subsequent blossom periods[
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.
]. Some fruit is usually available throughout 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.
].
Yields greatly depend on cultivar and environment, but there appears to be no reason why the potential yield of pomelo should be lower than for other citrus species[
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.
]. Thai sources put yield at 70 - 100 fruit per tree per year, equivalent to the 20 t/ha per year reported as a good yield in Malaysia[
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 white flowers are fagrant[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
].

Edible Uses

Fruit - raw or cooked. The pulp is somewhat acid, but very tasty[
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.
]. Excellent to eat out of hand, the fruit can also be added to fruit salads or make into jams, marmalade etc[
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 fruit is large and thick-skinned, resembling a grapefruit but with a firmer, non-bitter flesh and less juice[
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 fruit is 10 - 15cm in diameter, occasionally up to 30cm[
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.
]. Individual fruits have been known to weigh up to 8 kg[
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 fruits are utilized as a source of pectin[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

The peel can be candied and used as a flavouring in cakes etc[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

The flowers are used for scenting tea[
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

Various parts of the tree have traditional medicinal applications, including the leaves, flowers, fruits and seeds. They are used to treat a range of conditions, including coughs, fevers and gastric disorders[
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 decoction of the fresh leaves, in combination with the leaves from some other aromatic species, is used in the treatment of coryza, influenza and headache by inhalation of the vapour from the boiling decoction[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
].
A massage using the heated young leaves is an effective treatment for bruises[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
]

The fruit rind is an effective treatment for dyspepsia, colic and cough, in a daily dose of 4 to 12g in the form of a decoction[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
].

The seed envelopes contain pectin, which is a haemostatic[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
].
The seeds, stripped of their envelope and charred, are applied externally as a treatment for impetigo[
283
Title
Medicinal Plants in Vietnam
Publication
 
Author
Nguyen Van Dan & Doan Thi Nhu
Publisher
World Health Organisation
Year
1989
ISBN
92 9061 101 4
Description
An excellent book, giving information on over 200 plants, their medicinal compounds and applications.
].

Other Uses

An essential oil is obtained from the flowers[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
]. The aromatic flowers are used to make perfume in Vietnam[
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 leaves are put into the bath water to add a refreshing aroma[
317
Title
Mansfeld's Database of Agricultural and Horticultural Plants
Publication
 
Author
 
Website
http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336
Publisher
 
Year
0
ISBN
 
Description
Terse details of a huge range of useful plants.
].

The wood is used for tool handles[
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

The seed is best sown in containers as soon as it is ripe, after thoroughly rinsing it[
164
Title
Growing from Seed. Volume 4.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1990
ISBN
-
Description
Very readable magazine with lots of information on propagation. A good article on Yuccas, one on Sagebrush (Artemesia spp) and another on Chaerophyllum bulbosum.
,
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.
]. Sow stored seed in containers as soon as possible]. Germination usually takes place within 2 - 3 weeks at 13°c. Seedlings are liable to damp off so they must be watered with care and kept well ventilated. The seed is usually polyembryonic, two or more seedlings arise from each seed and they are genetically identical to the parent but they do not usually carry any virus that might be present in the parent plant[
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.
]. When large enough to handle, prick the seedlings out into individual pots and grow them on until they are 10cm or more tall before planting out into their permanent positions.
Cuttings of half-ripe wood, July/August in a frame. This species grows easily from cuttings[
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.
].
Air layering.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-03-28. <tropical.theferns.info/viewtropical.php?id=Citrus+maxima>

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