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Useful Tropical Plants

Aloe volkensii

Engl.

Xanthorrhoeaceae

+ Synonyms

Aloe stuhlmannii Baker

Common Name:

Aloe volkensii
Leaves
Photograph by: C T Johansson
Creative Commons License
Aloe volkensii Aloe volkensii

General Information

Aloe volkensii is a succulent, evergreen shrub or a tree usually growing up to 3 metres tall, exceptionally to 9 metres.
The stem can be solitary or clustered, up to 30cm in diameter, simple or branching from above the base, with persistent dead leaves. Each stem is topped by a rosette of spear-shaped leaves that can be up to 100cm long and 10cm wide at their base[
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 harvested from the wild for local use as a medicine, food preservative and ferment agent. It is sometimes grown as a live fence.
The plant has a very wide range and is quite common, though there are some threats from land conversion for agriculture (crops and livestock) and succulent collectors. It is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2013)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

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

515
Title
Flora of Tropical Africa Vol 1 - 8
Publication
 
Author
Var
Website
http://www.biodiversitylibrary.org
Publisher
L.Reeve & Co.; Ashford, Kent.
Year
1868 - 1917
ISBN
 
Description
Very little information on habitat, range and uses, but gives good descriptions of the plants. It can be downloaded from the internet.

Range

East tropical Africa - Uganda, Kenya, Rwanda, Tanzania.

Habitat

Dry, riverine forest and bush on rocky localities at elevations from sea-level to 2,100 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.
]. Thickets in bushed grassland and on steep rocky slopes in dense riverine woodland. Seems to always occur near rivers[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Properties

Conservation StatusLeast Concern
Edibility Rating *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitEvergreen Tree
Height3.00 m
Growth RateSlow
Cultivation StatusWild

Cultivation Details

Plants can tolerate at least some frost[
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.
].

For medicinal use leaves are primarily harvested from wild plants in a non-destructive way[
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.
].
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

Roots are used to accelerate the fermentation of honey beer and to impart a slightly bitter taste[
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

The leaf sap is taken to expel a retained placenta[
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 leaves are used to deworm livestock[
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 leaf sap is applied to burns, wounds and sores and as a lotion to eyes[
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 bitter exudate is applied to nipples to wean children and is rubbed on the forehead to treat headache[
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 Rwanda it is taken as a 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.
].

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.
].
Exudate of Aloe volkensii contains a mixture of the stereoisomers aloin A (barbaloin) and aloin B (isobarbaloin), which are 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.
].

Agroforestry Uses:

Aloe volkensii is planted as a live fence[
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

Small amounts of leaf sap are added to butter to increase its shelf life[
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.
].

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.
].
Cuttings are used to establish live fences of Aloe volkensii[
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. 2018-11-12. <tropical.theferns.info/viewtropical.php?id=Aloe+volkensii>

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