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Useful Tropical Plants

Aloe divaricata

A.Berger

Asphodelaceae

+ Synonyms

Aloe sahundra Bojer

Aloe vaotsohy rosea Decary

Common Name:

Aloe divaricata
Plant growing in its native habitat
Photograph by: Axel Strauss
Creative Commons License
Aloe divaricata Aloe divaricata Aloe divaricata

General Information

Aloe divaricata is an evergreen, succulent shrub with a sparsely-branched stem that is usually 2 - 3 metres tall, occasionally up to 6 metres. The leaves, which are up to 65cm long and 7cm wide at their base, are produced in rosettes at the end of each branch[
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.
].
All Madagascan Aloe species used as medicine are collected from the wild - this species is considered to have the highest exudate production. This dehydrated exudate, known as 'Madagascar Aloes', has been an important article in local and international trade[
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

The sap of Aloe species contains anthraquinones. These compounds have several beneficial medicinal actions, particularly as a laxative, and many species of Aloe are thus employed in traditional medicine. Whilst safe in small doses and for short periods of time, anthraquinones do have potential problems if used in excess. These include congestion and irritation of the pelvic organs[
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.
]. Long term use of anthraquinone laxatives may also play a role in development of colorectal cancer as they have genotoxic potential, and tumorigenic potential[
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

455
Title
Flore de Madagascar et des Comores
Publication
 
Author
Humbert H.
Website
http://www.biodiversitylibrary.org/
Publisher
Museum National D'Histoire Naturelle; Paris
Year
1946 - 1984
ISBN
 
Description
Written in French, an excellent flora of the area though it has not been completed. Available for download from the Internet.

Range

Africa - Madagascar.

Habitat

Mostly found in arid bush vegetation on sandy soils and in coastal thickets, at elevations 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.
]. In dense bush it can grow with a simple stem up to 6 metres long[
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 *  *  *
HabitEvergreen Shrub
Height3.00 m
Cultivation StatusWild

Cultivation Details

Plants are not very tolerant of even light frosts[
423
Title
Desert Tropicals
Publication
 
Author
 
Website
http://www.desert-tropicals.com/
Publisher
 
Year
0
ISBN
 
Description
The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
].
Succeeds in full sun and in light shade[
423
Title
Desert Tropicals
Publication
 
Author
 
Website
http://www.desert-tropicals.com/
Publisher
 
Year
0
ISBN
 
Description
The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
].. Found in sandy soils in the wild[
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.
]. Established plants are drought tolerant[
423
Title
Desert Tropicals
Publication
 
Author
 
Website
http://www.desert-tropicals.com/
Publisher
 
Year
0
ISBN
 
Description
The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
].
Aloe species follow the Crassulacean acid metabolism (CAM). CAM plants can fix carbon dioxide at night and photosynthesize with closed stomata during the day, thus minimizing water loss. This, plus their succulent leaves and stems, and the presence of a thick cuticle, makes them well adapted to dry conditions[
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

None known

Medicinal

The leaves, and their sap, are oxytocic and purgative[
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.
,
565
Title
Madagascar. An Environmental Profile.
Publication
 
Author
Jenkins M.D. (Editor)
Publisher
World Conservation Monitoring Centre; Cambridge.
Year
1987
ISBN
2-88032-607-9
Description
Contains a list of the Ethnobotanical uses of Madagascar plants.
]. A decoction of the leaves or the leaf sap is applied internally and externally to improve the healing of bone fractures[
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.
,
565
Title
Madagascar. An Environmental Profile.
Publication
 
Author
Jenkins M.D. (Editor)
Publisher
World Conservation Monitoring Centre; Cambridge.
Year
1987
ISBN
2-88032-607-9
Description
Contains a list of the Ethnobotanical uses of Madagascar plants.
].

The plant (part not specified) is used in the treatment of venereal diseases[
423
Title
Desert Tropicals
Publication
 
Author
 
Website
http://www.desert-tropicals.com/
Publisher
 
Year
0
ISBN
 
Description
The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
].

The internationally traded product ‘Madagascar Aloes’ contains 15 - 40% anthrone 10-C-glucosides (anthraquinone derivatives) such as aloin, hydroxyaloins and sometimes aloinoside. Aloin and aloinoside are both mixtures of stereoisomers. Aloin is responsible for the laxative properties[
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.
]. On a dry weight basis the exudate of Aloe divaricata contains 18.5% aloin, and the leaf 3%[
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 distinctive constituents in Aloe leaves are phenolic compounds, including chromone, anthraquinone or anthrone derivatives. Some of the compounds are found in many species, whereas others occur in only a few[
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 - we have no specific information on this species - in general Aloes are sown in a sandy, well-drained potting soil in a warm, shady position in standard seed trays. Germination takes about three weeks. Cover the seed with a thin layer of sand (1 - 2mm), keep moist. The seedlings can be planted out in individual bags or containers as soon as they are large enough to handle[
295
Title
PlantZAfrica.com
Publication
 
Author
 
Website
http://www.plantzafrica.com
Publisher
 
Year
0
ISBN
 
Description
An excellent site giving detailed descriptions and uses of many S. African plants.
].
Suckers
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2019-08-25. <tropical.theferns.info/viewtropical.php?id=Aloe%20divaricata>

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