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Useful Tropical Plants

(Redirected from Acacia macrostachya)

Senegalia macrostachya

(Rchb. ex DC.) Kyal. & Boatwr.

Fabaceae


Classification of the genus Acacia (in the wider sense) has been subject to considerable debate. It is generally agreed that there are valid reasons for breaking it up into several distinct genera, but there has been disagreement over the way this should be done. As of 2017, it is widely (but not completely) accepted that the section that includes the majority of the Australian species should retain the name Acacia, whilst other sections of the genus should be transferred to other genera. This species is transferred to Senegalia[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

+ Synonyms

Acacia macrostachya Rchb. ex DC.

Common Name:

No Image.

General Information

Senegalia macrostachya is a spiny, several-stemmed, woody plant that can be more shrub like and grow around 4 metres tall; or can adopt a more climbing habit; or can become more tree-like and sometimes as much as 15 metres tall[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].
The plant is sometimes harvested from the wild for local use as a food, medicine and source of wood. It is sometimes grown as a thorny hedge for keeping out unwanted guests.

Known Hazards

Unlike many of the African species of Acacia (sensu lato), the seeds of this species are not toxic[
1294
Title
Potential of Australian Acacias in combating hunger in semi-arid lands
Publication
Conservation Science W. Aust. 4 (3):161-169 (2002)
Author
Rinaudo A.; Patel P.; Thomson L.A.J.
Publisher
 
Year
2002
ISBN
 
Description
 
].
The seed of many Acacia species, including this one, is edible and highly nutritious, and can be eaten safely as a fairly major part of the diet. Not all species are edible, however, and some can contain moderate levels of toxins[
1295
Title
Acacia in Australia: Ethnobotany and Potential Food Crop
Publication
Janick (ed.), Progress in new crops pp 228-236, (1996) ASHS Press, Alexandria, VA.
Author
Lister P.R.; Holford P.; Haigh T.; Morrison D.A.
Website
https://hort.purdue.edu/newcrop/proceedings1996/v3-toc.html
Publisher
ASHS Press, Alexandria, VA.
Year
1996
ISBN
0-9615027-3-8
Description
 
]. Especially when harvesting from the wild, especial care should be taken to ensure correct identification of any plants harvested for food[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Especially in times of drought, many Acacia species can concentrate high levels of the toxin Hydrogen cyanide in their foliage, making them dangerous for herbivores to eat.

Botanical References


Range

Africa - drier areas from Senegal to Sudan.

Habitat

On hard-pan and gravelly soils; sometimes on sand or loamy soils (Niger); bushy scrub, wooded savannah on compact sand, and thickets in shallow soil on hard-pan (S Chad); sometimes forming thorny thickets[
328
Title
African Flowering Plants Database
Publication
 
Author
 
Website
http://www.ville-ge.ch/musinfo/bd/cjb/africa/recherche.php
Publisher
Conservatoire et Jardin Botaniques.
Year
0
ISBN
 
Description
Contains information on over 150,000 plant names (including synonyms) giving a description and habitat, plus a distribution map.
].

Properties

Edibility Rating *  *
Medicinal Rating *  *
Other Uses Rating *  *
HabitClimber
Height5.00 m
PollinatorsInsects
Cultivation StatusCultivated, Wild

Cultivation Details


Soil requirements are not specific, the plant is able to grow well on the poorest soils, on hardpans, clay, scree, detritus and debris[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].
Although many species within the family Fabaceae have a symbiotic relationship with soil bacteria, this species is said to be devoid of such a relationship and therefore does not fix atmospheric nitrogen[
755
Title
Nodulation Plants in GRIN Taxonomy
Publication
 
Author
 
Website
http://www.ars-grin.gov/~sbmljw/cgi-bin/taxnodul.pl?language=en
Publisher
United States Department of Agriculture
Year
0
ISBN
 
Description
An online database listing plants that have either positive or negative reports on root and stem nodulation with nitrogen-fixing bacteria.
].

Edible Uses

A gum obtained from the stems is edible but of a poor quality[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].

Seeds - cooked[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
]. Sometimes boiled and eaten as a vegetable[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
,
774
Title
Trees and Shrubs of the Sahel. Their Characteristics and Uses.
Publication
 
Author
von Maydell H.
Publisher
Deutsche Gesellschaft fur Technische Zusammenarbeit; Germany
Year
1990
ISBN
3-8236-1198-4
Description
A well-researched book, usually with more than one photograph of each species and good information on the plant and its uses.
].

Medicinal

The young leaves are boiled and the liquid used in the treatment of gastro-intestinal disorders, as an anti-helminthic, and as an antidote to snake-bite[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
]. It is said that if a large quantity of the leaves are eaten after having being bitten by a snake, then they will inhibit the poison's dispersion in the blood[
774
Title
Trees and Shrubs of the Sahel. Their Characteristics and Uses.
Publication
 
Author
von Maydell H.
Publisher
Deutsche Gesellschaft fur Technische Zusammenarbeit; Germany
Year
1990
ISBN
3-8236-1198-4
Description
A well-researched book, usually with more than one photograph of each species and good information on the plant and its uses.
].

The bark and the roots are used medicinally[
774
Title
Trees and Shrubs of the Sahel. Their Characteristics and Uses.
Publication
 
Author
von Maydell H.
Publisher
Deutsche Gesellschaft fur Technische Zusammenarbeit; Germany
Year
1990
ISBN
3-8236-1198-4
Description
A well-researched book, usually with more than one photograph of each species and good information on the plant and its uses.
].

The bark of all Acacia species contains greater or lesser quantities of tannins and are astringent. Astringents are often used medicinally - taken internally, for example. they are used in the treatment of diarrhoea and dysentery, and can also be helpful in cases of internal bleeding. Applied externally, often as a wash, they are used to treat wounds and other skin problems, haemorrhoids, perspiring feet, some eye problems, as a mouth wash etc[
601
Title
The Useful Native Plants of Australia.
Publication
 
Author
Maiden J.H.
Website
http://www.biodiversitylibrary.org
Publisher
Turner & Co.; London.
Year
1889
ISBN
 
Description
Terse details of the uses of many Australian plants and other species naturalised, or at least growing, in Australia. It can be downloaded from the Internet.
,
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Many Acacia trees also yield greater or lesser quantities of a gum from the trunk and stems. This is sometimes taken internally in the treatment of diarrhoea and haemorrhoids[
601
Title
The Useful Native Plants of Australia.
Publication
 
Author
Maiden J.H.
Website
http://www.biodiversitylibrary.org
Publisher
Turner & Co.; London.
Year
1889
ISBN
 
Description
Terse details of the uses of many Australian plants and other species naturalised, or at least growing, in Australia. It can be downloaded from the Internet.
].

Agroforestry Uses:

The plant is used for making live hedgies - these can be impenetrable because of their spiny nature[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].

Other Uses

The wood is used as fence posts[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].
The wood can be used as fuel[
375
Title
Grassland Species - Profiles
Publication
 
Author
 
Website
http://www.fao.org/ag/AGP/AGPC/doc/Gbase/Default.htm
Publisher
 
Year
0
ISBN
 
Description
Terse information on over 650 species of plants that grow in grassland, including trees, shrubs and perennial plants as well as grasses. Gives a brief description of the plant, its range and habitat and some of its uses.
].

Propagation

The seed of most, if not all, members of this genus has a hard seedcoat and may benefit from scarification before sowing to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing.
Acacia seeds that have matured fully on the bush and have been properly dried have a hard seed coat and can be stored in closed containers without deterioration for 5 - 10 years or more in dry conditions at ambient temperatures. It is best to remove the aril, which attracts weevils and can lead to moulds forming. The arils are easilyremoved by placing the seeds in water and rubbing them between the hands, then drying the seeds and winnowing them[
1294
Title
Potential of Australian Acacias in combating hunger in semi-arid lands
Publication
Conservation Science W. Aust. 4 (3):161-169 (2002)
Author
Rinaudo A.; Patel P.; Thomson L.A.J.
Publisher
 
Year
2002
ISBN
 
Description
 
].

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