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Useful Tropical Plants

Citrus medica

L.

Rutaceae

+ Synonyms

Aurantium medicum (L.) M. Gómez

Citreum vulgare Tourn. ex Mill.

Citrus alata (Tanaka) Yu.Tanaka

Citrus aurantium bergamia (Risso) Brandis

Citrus aurantium proper Guillaumin

Citrus aurantium tamurana Yu.Tanaka

Citrus balotina Poit. & Turpin

Citrus bergamia mellarosa (Risso) Rivera, et al.

Citrus bicolor Poit. & Turpin

Citrus bigena Poit. & Turpin

Citrus cedra Link

Citrus cedrata Raf.

Citrus crassa Hassk.

Citrus fragrans Salisb.

Citrus gongra Raf.

Citrus grandis pyriformis (Hassk.) Karaya

Citrus hassaku Yu.Tanaka

Citrus hiroshimana Yu.Tanaka

Citrus kizu Yu.Tanaka

Citrus kwangsiensis Hu

Citrus limetta murcica S.Ríos & al.

Citrus limodulcis Rivera, et al.

Citrus limon (L.) Osbeck

Citrus limon digitata Risso

Citrus limonimedica Lush.

Citrus lumia Risso

Citrus nana (Wester) Yu.Tanaka

Citrus odorata Roussel

Citrus pyriformis Hassk.

Citrus sarcodactylus Siebold ex Hoola van Nooten

Citrus sudachi Yu.Tanaka

Citrus tuberosa Mill.

Limon racemosum Mill.

Limon spinosum Mill.

Limon vulgaris Ferrarius ex Miller

Sarcodactilis helicteroides Gaertn.

Common Name: Citron

Citrus medica
Fruit, showing the lack of flesh
Photograph by: EsrogHunt
Creative Commons Attribution-Share Alike 4.0
Citrus medica Citrus medica Citrus medica

General Information

Citron is a straggly, evergreen shrub or small tree growing up to 4 metres tall. It is considered to be a delicate plant and the most tender of the cultivated 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.
].
The plant yields an edible fruit, though it is very acidic and is more commonly used as a flavouring. It also plays a role in the Jewish Feast of the Tabernacles[
377
Title
Trade Winds Fruit
Publication
 
Author
 
Website
http://www.tradewindsfruit.com/index.htm
Publisher
 
Year
0
ISBN
 
Description
The on-line catalogue of a company selling seeds. Gives descriptions, photos and uses of a very wide range of fruit and other food-producing plants plus ornamentals.
]. The plant is occasionally cultivated in the tropics, subtropics and warm temperate zones[
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.
]. In the tropics, where a few fruits ripen throughout the year, the crop is more suited to home gardens than production in orchards[
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 some 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.
].

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

Only known in cultivation.

Habitat

Not known in a truly wild situation.

Properties

Edibility Rating *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitEvergreen Shrub
Height4.00 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.
].
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 6.5 - 7, tolerating 5.5 - 8[
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.
,
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 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.
].
In the tropics, citron grows very well at elevations below 1,300 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 optimal temperatures for cultivation range between 15 - 27°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 35°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.
]. Fruits are killed if the temperature falls to -2°c, whilst the leaves are killed at -9°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.
]. 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.
]. Citron is very sensitive to frost and to intense heat and drought; it is the tenderest of all 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.
].
The tree has a short life cycle compared with other citrus species. It starts producing when 2 - 3 years old, reaches a maximum in 8 - 15 years and has an economical life of 25 - 30 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.
,
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 trees produce about 40 kg fruit per year, but yields up to 100 kg per year per tree have been obtained[
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.
].
Citron cultivars are divided into two groups:-
Acid cultivars. These have pinkish floral buds and shoots, acid pulp and a dark inner seed-coat and chalazal spot[
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.
].
Non Acid cultivars. These are without pinkish floral buds and shoots, with non-acid pulp, a colourless inner seed-coat and a pale-yellow chalazal spot.
In China, Japan, Indo-China and India, Citrus medica L. Var. Sarcodactylis (Noot.) Swingle is widely cultivated. It is the fingered citron or Buddha's Hand Citron, whose fruit is split into a number of finger-like sections, without or with very scanty pulp[
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 highly esteemed for its fragrance and beauty and used to perfume rooms and clothing[
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.
]. Grown as a dwarf plant it is also a valued ornamental throughout the Far East[
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

The fruits are made into marmalade, eaten in salads or are used in liqueurs[
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 thick rind of the fruit can be sliced and added to salads, or candied and used as a flavouring in cakes, puddings, confectionery 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.
]. It is a commercial source of candied peel, used in cakes etc[
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.
]. The thick peel is candied, after having been cleaned by fermentation in sea water[
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 fruit of some improved forms can be used to extract the juice for making beverages and desserts[
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 lemon-shaped fruit can be 10 - 20cm long[
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.
].

Medicinal

The fresh shoots, leaves, flowers, fruits and seeds of citron have all entered into a number of traditional medicinal preparations for the treatment of asthma, arthritis, headache, stomach-ache, intestinal parasites and certain psychological disturbances (insanity, possession by evil spirits).

Decoctions of the roots are reportedly used to treat respiratory problems and backache in China[
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 fruits are used in the treatment of malaria, coughs and colds[
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
].

The stem is used in febrifuge pills[
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
].

Other Uses

Citron fruit has been used since Roman times as a perfume and moth repellent, and to flavour foods[
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 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.
]. Citron is usually propagated by leafy cuttings taken from 2-4 year-old branches[
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.
].
Layering in October.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2020-10-29. <tropical.theferns.info/viewtropical.php?id=Citrus+medica>

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