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Useful Tropical Plants

Launaea cornuta

(Hochst. ex Oliv. & Hiern) C.Jeffrey

Asteraceae

+ Synonyms

Lactuca farinulenta (Chiov.) Cufod.

Launaea courtetiana O.Hoffm. & Muschl.

Launaea exauriculata (Oliv. & Hiern) Amin ex Boulos

Launaea farinulenta Chiov.

Launaea virgata O.Hoffm. & Muschl.

Sonchus bipontini exauriculatus Oliv. & Hiern

Sonchus bipontini pinnatifidus Oliv. & Hiern

Sonchus exauriculatus (Oliv. & Hiern) O.Hoffm.

Sonchus kabarensis De Wild.

Sonchus oliveri-hiernii Boulos

Common Name: Bitter Lettuce

No Image.

General Information

Launaea cornuta is a herbaceous perennial plant. It has a creeping root system that produces, at intervals along the root, a basal rosette of leaves with a central stem that is usually up to 1 metre tall, occasionally to 1.5 metres[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
].
The leaves are a bitter but popular vegetable in East Africa, whilst the plant also has local medicinal uses. The plant is usually harvested from the wild, but is also sometimes cultivated in eastern Africa as a leaf crop. It is often found for sale in local markets[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Known Hazards

None known

Botanical References


Range

Tropical Africa - Nigeria to Somalia, south to Zambia, Zimbabwe and Mozambique, avoiding wetter areas.

Habitat

Mainly in disturbed localities such as roadsides, or as a troublesome weed in perennial plantations of trees or shrubs, it can also be found in grassland. Grows mainly in hot, lowland, coastal areas, but also at higher elevations up to 2,300 metres[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Properties

Weed PotentialYes
Edibility Rating *  *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitPerennial
Height1.00 m
PollinatorsSelf, Insects
Self-fertileYes
Cultivation StatusCultivated, Wild

Cultivation Details


Prefers a sandy soil in a relatively dry locality, but also succeeds in loams and black cotton soils[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
A weed within its native range, care should be taken to prevent the plant spreading elsewhere as a weed[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
After emergence, the young plant develops a basal rosette of leaves, with a leafy flowering stalk being formed soon after[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The plant can flower all year round[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
After fruiting new growth develops from the base of the stem and from the root. Even during the dry season the plants form new rosette leaves and they keep producing new shoots from the roots for several years[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Edible Uses

The foliage is commonly eaten as a vegetable[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. It is bitter, like quinine, and serves also to flavour food in Kenya[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. The larger young leaves from the basal rosette are the least bitter and the most commonly eaten[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

The plant is used to give a bitter flavour to beer[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

Medicinal

Coastal people in east Africa believe that the leaves can prevent and cure malaria, whereas people with stomach problems or ulcers should not eat it[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Water in which the leaves have been cooked to eat as spinach is used as a hair-wash to kill lice[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
].

The plant is held to have an analgesic property. The whole plant is taken to relieve pain in the spleen, and the sap is instilled into the ear to relieve earache[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. A decoction of the whole plant is used externally to treat measles[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].

A cold water infusion of the roots is used as a remedy for stomach ache, whilst a root-decoction combined with the leaf-sap is taken for the same trouble[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. The root is used to remedy swollen testicles, gonorrhoea, syphilis, typhus and cough, and as a treatment for hookworm[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
].
Chopped-up into small pieces and cooked in a little water, the liquor is used as a gargle to treat sore-throats[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
]. The root is used as a lotion to treat eye and ear troubles[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
,
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
].

Other Uses

Water in which the leaves have been cooked to eat as spinach is used in Tanganyika as a hair-wash to kill lice[
332
Title
The Useful Plants of West Tropical Africa.
Publication
 
Author
Burkil. H. M.
Publisher
Royal Botanic Gardens; Kew.
Year
1985 - 2004
ISBN
 
Description
Brief descriptions and details of the uses of over 4,000 plants. A superb, if terse, resource, it is also available electronically on the Web - see http://www.aluka.org/
].

Propagation

Seed - sown in situ, it germinates within a few days[
299
Title
Protabase - Plant Resources of Tropical Africa.
Publication
 
Author
 
Website
http://www.prota.org
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Division.
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2019-06-25. <tropical.theferns.info/viewtropical.php?id=Launaea+cornuta>

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