''Senegalia ataxacantha'', commonly known as the flame thorn, is an
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
n tree species with conspicuous red pods and numerous hooked prickles.
Range
It is widespread in
sub-Saharan
Sub-Saharan Africa is, geographically, the area and regions of the continent of Africa that lies south of the Sahara. These include West Africa, East Africa, Central Africa, and Southern Africa. Geopolitically, in addition to the African co ...
Africa from
Senegal
Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣𞤭 ...
in the west to
Sudan
Sudan ( or ; ar, السودان, as-Sūdān, officially the Republic of the Sudan ( ar, جمهورية السودان, link=no, Jumhūriyyat as-Sūdān), is a country in Northeast Africa. It shares borders with the Central African Republic t ...
in the east,
Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea ...
,
Botswana
Botswana (, ), officially the Republic of Botswana ( tn, Lefatshe la Botswana, label=Setswana, ), is a landlocked country in Southern Africa. Botswana is topographically flat, with approximately 70 percent of its territory being the Kalahar ...
,
Zimbabwe
Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozam ...
, and in the
Transvaal Transvaal is a historical geographic term associated with land north of (''i.e.'', beyond) the Vaal River in South Africa. A number of states and administrative divisions have carried the name Transvaal.
* South African Republic (1856–1902; af, ...
and
KwaZulu-Natal
KwaZulu-Natal (, also referred to as KZN and known as "the garden province") is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu) and Natal Province were merged. It is locate ...
. In arid regions it prefers low-lying sites near streams, watercourses and in valleys, but in higher rainfall areas is a common constituent of the bush, often favouring forest margins. Once established, young trees are quite frost-hardy.
Description
Its normal habit is that of a multi-stemmed, untidy, large shrub with a tendency for the shoots to scramble using their recurved prickles, and often develops into a single-stemmed tree of 5-10m in height and 300mm trunk diameter. The rounded crown of dense, dark green foliage is composed of very small
pinnule
A leaflet (occasionally called foliole) in botany is a leaf-like part of a compound leaf. Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf. Co ...
s. Translucent red pods provide a colourful display when backlit. The flaking bark is light grey, splitting longitudinally and transversely, and revealing a buff under-colour. The persistent prickles are profuse on young twigs, but can also be found on older wood. Unlike other species of the genus ''
Acacia
''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus na ...
'', the prickles are not in pairs, but scattered along young twigs ('ataxacantha' = orderless prickles).
Flowers occur as clusters of off-white or cream-coloured terminal spikes which are fragrant and bloom during spring and summer.
[''A Field Guide to the Acacias of Southern Africa'' - Lynette Davidson, ]Barbara Jeppe
Barbara Jeppe (21 May 1921 Pilgrim's Rest, Mpumalanga, Pilgrim's Rest – 20 June 1999 Johannesburg) was a South African botanical illustrator, botanical artist.
Born in the mining town of Pilgrim's Rest, Mpumalanga, Pilgrim's Rest, she was th ...
The timber, resembling that of ''
Acacia melanoxylon
''Acacia melanoxylon'', commonly known as the Australian blackwood, is an ''Acacia'' species native in South eastern Australia. The species is also known as Blackwood, hickory, mudgerabah, Tasmanian blackwood, or blackwood acacia. The tree belon ...
'', often has
heart rot
300px, The bracket fungus '' Fistulina hepatica'' is one of many that cause heart rot.
In trees, heart rot is a fungal disease that causes the decay of wood at the center of the trunk and branches. Fungi enter the tree through wounds in the bark ...
, but when sound is of good quality and handsomely streaked in black, dark brown, purple and cream, with markedly contrasting off-white sapwood.
The appearance of this species may be confused with ''
Senegalia caffra'' which differs by having paired prickles, stouter pods and greyish-green markedly pendent foliage.
See also
*
List of Southern African indigenous trees and woody lianes
This is a list of Southern African trees, shrubs, suffrutices, geoxyles and lianes, and is intended to cover Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe.
The notion of 'indigenous' is of ...
Gallery
References
External links
*
{{Taxonbar, from=Q4670862
ataxacantha
Trees of Africa