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Useful Tropical Plants

Manihot esculenta

Crantz.

Euphorbiaceae

+ Synonyms

Jatropha manihot L.

Manihot alpi Pohl.

Manihot dulcis (J.F.Gmel.) Pax

Common Name: Cassava

Manihot esculenta
Roots
Photograph by: Yosri
GNU Free Documentation License
Manihot esculenta Manihot esculenta Manihot esculenta Manihot esculenta Manihot esculenta Manihot esculenta

General Information

Cassava is a shrub growing around 3 metres tall.
One of the most important of the cultivated tropical food crops, there is evidence that it was being cultivated for its leaves and corms in Peru 4,000 years ago[
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.
]. Its cultivation gradually spread and now it is widely grown in tropical areas throughout the world, especially in lowland tropical regions[
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.
,
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].

Known Hazards

The leaves contain the harmful glucoside linamarin, which can release the toxic hydrocyanic acid in the presence of the enzyme linase[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
,
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. This can be destroyed by heat[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
]

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

Tropics.

Habitat

Widely cultivated as a food crop, it is not known in a truly wild situation.

Properties

Edibility Rating *  *  *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitShrub
Height3.00 m
PollinatorsInsects
Cultivation StatusCultivated

Cultivation Details

Cassava grows best at elevations below 1,700 metres[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Plants do not grow well at temperatures lower than 16°c, the stems and leaves are very sensitive to even short periods of chilling[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Temperatures in excess of 29°c may have an adverse effect on growth and development[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Plants grow best in areas where rainfall is in the range of 500 - 2,500mm per annum[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. A short-day plant, tuber production is reduced in daylengths greater than 12 hours[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
Plants need some shelter from bright sunshine or their leaves can be burnt[
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.
]. A quite tolerant plant, succeeding in drier and moister soils as well as in quite deep shade[
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.
]. Cassava is not a particularly greedy plant, though yields are improved if they are well fed[
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.
]. A sandy or sandy loam is generally preferred for growing the plant[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Requires a well-drained soil[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Some cultivars are extremely drought resistant[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Tolerates a pH in the range 5.5 - 8.0[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
The plant grows, and can be harvested, 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.
]. The roots take about six months to mature, so it is possible to grow two crops a year[
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 roots are often badly damaged by termites[
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.
].
There are many named varieties. There are two groups of cultivars, the sweet and the bitter[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. Sweet forms contain much less hydrocyanic acid, and this is confined mainly to the outer phellodern layers of the root tuber[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
]. In bitter varieties the hydrocyanic acid is widely distributed throughout the tuber[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].
Care must be taken to grow the cultivated 'sweet' varieties that have been developed as food crops - ornamental, usually variegated, forms are usually bitter tasting and poisonous[
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 leaves are particularly susceptible to damage by insecticide sprays[
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.
].
Cassava will usually grow into a tall spindly bush unless cut back - they are very tolerant of heavy harvesting and so in cultivation it is best to keep them at about 1 metre tall[
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.
].

Edible Uses

Young leaves - cooked as a vegetable[
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.
]. Boiled like spinach, or added to stews[
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 leaves need to be boiled for about 15 minutes in order to destroy harmful glucosides[
298
Title
Edible Leaves of the Tropics
Publication
 
Author
Martin. F. W.; Ruberte. R. M. & Meitzner. L. S.
Publisher
Echo. USA.
Year
1998
ISBN
0-9653360-1-8
Description
A terse guide, giving reasonable detail on the more common leaf crops and brief information on a wide range of lesser known plants.
]. Some sweet varieties contain little or no glucosides[
300
Title
Vegetables in the Tropics
Publication
 
Author
Tindall. H. D.
Publisher
MacMillan, Oxford.
Year
1983
ISBN
0-333-24268-8
Description
An excellent, in-depth look at the main vegetable crops that can be grown in the Tropics, plus many less well-known plants.
].

Root - cooked and used as a vegetable[
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 tuberous root can be sliced and fried like chips, boiled and added to vegetable dishes, or made into a flour and used in breads and biscuits, or as a thickener in gravies, soups, desserts 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 root is higher in carbohydrate and rather deficient in protein than many other root crops[
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.
]. Unfortunately, where cassava is used as the main staple in the diet, it can lead to malnutrition[
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.
]. It is a fairly good source of vitamin C[
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.
].Starch from the tuber is used to make tapioca[
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.
,
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.
]. Some care should be exercised in using this plant for food since it is more or less poisonous when raw. Sweet varieties need to be simmered for 10 minutes before eating, whilst bitter varieties should be soaked for 24 hours prior to simmering for at least 10 minutes in fresh water[
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.
].

Medicinal

Cassava is often used in traditional medicine and has a number of applications[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
].
The plant is antifungal, antiviral, mutagenic and antibacterial[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
,
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 roots of bitter varieties can be used to treat scabies, diarrhoea and dysentery[
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
]. The juice of the grated tubers is used to treat constipation and indigestion[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
].
A flour made from the roots can be used as a dusting powder on the skin in order to help dry weeping skin[
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
]. Soaked with Carapa oil, it is used as a poultice on shattered muscles[
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 mixed with rum and rubbed onto children's skin as a treatment for abscesses and skin eruptions[
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 can be made into an ointment to treat fungal dermatitis[
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 leaves are haemostatic[
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
]. They are made into a poultice to treat wounds[
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 leaves are infused in bath water to treat influenza and fevers[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
]. The leaves are heated and rubbed across sore eyes[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
].

The stem is folded and rubbed across the eyes of people suffering from glaucoma[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
].

The bark of the plant, together with that of Cordyline terminalis, is thought to prolong life[
311
Title
Medicinal Plants in the South Pacific
Publication
 
Author
 
Publisher
WHO Regional Publications, Manilla.
Year
1998
ISBN
92-9061-118-9
Description
Excellent guide to 102 medicinal herbs of the Pacific Islands, with photographs of each plant and details of their constituents, biological activities and traditional uses. A description of each plant, together with habitat and distribution is given.
].

Sugar cane and annatto are employed in an antidote to ingested water which has been poisoned by the soaking roots of this plant[
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

Insect repellent - a mulch of the leaves and stems repels root knot nematodes[
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.
].

A glue can be made from the starch[
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.
]. It is used on postage stamps[
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 starch in the root is used as a size for cotton fabrics[
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.
].

Propagation

Seed - seedlings are very unlikely to be true to type and could possibly revert to bitter types.
Cuttings - they root easily[
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.
]. Take shoots about 30cm long and 15mm thick from a woody part of the stem and remove all leaves. It is possible to root the shoots by standing them in a container of water, planting them out when they have made good roots. Alternatively, plant the cuttings out directly in the soil making sure that they are kept moist[
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.
].

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