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Useful Tropical Plants

Strychnos icaja

Baill.

Loganiaceae

+ Synonyms

Strychnos brachyura Gilg

Strychnos dewevrei Gilg

Strychnos dundusanensis De Wild.

Strychnos kipapa Gilg

Strychnos mildbraedii Gilg

Strychnos pusilliflora S.Moore

Strychnos venulosa Hutch. & M.B.Moss

Common Name:

Strychnos icaja

General Information

Strychnos icaja is a very vigorous climbing shrub able to produce stems up to 100 metres long and 15cm in diameter. The stems can climb 40 metres into the forest canopy where they attach themselves by means of tendrils[
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 plant is harvested from the wild for local medicinal use.

Known Hazards

A root or root bark infusion, or more rarely a stem bark extract, has been used as ordeal poison. Often roots of young plants were used, which seem to have a lower toxicity than those of mature plants[
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 root bark is an ingredient in arrow poison[
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.
].
Whole plants, root bark and fruits are used as a fish poison[
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.
].

Botanical References

736
Title
Flora of West Tropical Africa
Publication
 
Author
 
Website
http://plants.jstor.org/search?st=2025
Publisher
 
Year
0
ISBN
 
Description
An online flora, not yet complet (2012). Very comprehensive as regards to species covered, but the information on each species is often rather terse.

Range

West tropical Africa - Guinea to Central African Republic, south to Angola and DR Congo.

Habitat

Rainforest and secondary forest on lateritic sandy clay soils, from sea-level up to 800 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

Medicinal Rating *  *
HabitClimber
Height35.00 m
Cultivation StatusWild

Cultivation Details

Not known

Edible Uses

None known

Medicinal

Because of its toxicity, this plant is usually only administered under the supervision of a traditional medicine man, mainly in the treatment of skin diseases and chronic and persistent malaria[
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 very small dose of root bark maceration is taken as an abortifacient and as an anthelmintic[
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.
].
An alcoholic extract of the stem bark is taken to treat haemorrhoids[
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 body is rubbed with a root bark maceration as a snake repellent[
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 dried and powdered root bark, mixed with palm oil, is applied topically to treat skin diseases and itch[
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 decoction of the roots is taken as a diuretic or as an intoxicating drink[
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 infusion of the root in palm wine is taken to treat gastrointestinal complaints and hernia[
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 maceration of the ground roots is used as a rectal wash to treat sterility[
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 ash of burnt twigs or roots is rubbed into scarifications of the forehead to treat insanity and malaria[
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 root, stem and leaves contain a mixture of tertiary indole alkaloids, of which strychnine and pseudostrychnine (12-hydroxystrychnine) are the principal active substances[
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 roots contain dimeric tertiary alkaloids and quaternary alkaloids[
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.
].
Strychnine is the main alkaloid component of the fruits and seeds. Strychnine activity enhances epinephrine levels and increases blood pressure. The most direct symptoms caused by strychnine are violent convulsions. It is applied in medicine as a stimulator of the nervous system and as a reliable anaesthetic. It is slightly soluble in water, but more soluble in alcohol[
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 alkaloids sungucine and isosungucine exhibit antiplasmodial activities but also show cytotoxic effects against human cancer cells[
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.
].
Pharmacological experiments have shown that the quaternary alkaloid fraction has pronounced muscle-relaxant activity. Moreover, this fraction has a powerful cardiotoxic action ending in irreversible cardiac arrest[
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 trimeric indolomonoterpenic alkaloid strychnohexamine, which is found in the leaves, has antiplasmodial activity against Plasmodium falciparum[
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 also contains saponins, iridoids and phenolic compounds, although they probably have little activity compared to the alkaloids[
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.
].

Other Uses

None known

Propagation

Seed -
Suckers[
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.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2024-06-18. <tropical.theferns.info/viewtropical.php?id=Strychnos+icaja>

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