''Faidherbia'' is a genus of

leguminous A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock ...

plants containing one species, ''Faidherbia albida'', which was formerly widely included in 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 ...

'' as ''Acacia albida''. The species is native to

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 ...

and the

Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (Europ ...

and has also been introduced to

Pakistan Pakistan ( ur, ), officially the Islamic Republic of Pakistan ( ur, , label=none), is a country in South Asia. It is the world's fifth-most populous country, with a population of almost 243 million people, and has the world's second-la ...

and

India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...

.ILDIS LegumeWeb
/ref> Common names include apple-ring acacia (their circular, indehiscent seed pods resemble apple rings), and winter thorn. The

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring coun ...

n name is ana tree.

Taxonomy

This species has been known as ''Acacia albida'' for a long time, and is often still known as such. Guinet (1969) in

Pondicherry Pondicherry (), now known as Puducherry ( French: Pondichéry ʊdʊˈtʃɛɹi(listen), on-dicherry, is the capital and the most populous city of the Union Territory of Puducherry in India. The city is in the Puducherry district on the south ...

first proposed separating it into the genus ''Faidherbia'', a genus erected the previous century by

Auguste Chevalier Auguste may refer to: People Surname * Arsène Auguste (born 1951), Haitian footballer * Donna Auguste (born 1958), African-American businesswoman * Georges Auguste (born 1933), Haitian painter * Henri Auguste (1759–1816), Parisian gold a ...

with this as the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen( ...

, seconded by the South African James Henderson Ross (1973) and the

Senegal Senegal,; Wolof: ''Senegaal''; Pulaar: 𞤅𞤫𞤲𞤫𞤺𞤢𞥄𞤤𞤭 (Senegaali); Arabic: السنغال ''As-Sinighal'') officially the Republic of Senegal,; Wolof: ''Réewum Senegaal''; Pulaar : 𞤈𞤫𞤲𞤣𞤢𞥄𞤲𞤣� ...

ese

legume A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock fo ...

botanist Nongonierma (1976, 1978), but authors continued to favour classification under ''Acacia'' as of 1997.

Infraspecific variability

According to

John Patrick Micklethwait Brenan John Patrick Micklethwait Brenan (1917-1985) was a British botanist who became director of the Royal Botanic Gardens, Kew. Brenan was born on 19 June 1917 in Chislehurst and died on 26 September 1985 at Kew. A funeral requiem was held on 3 Oct ...

writing in the ''

Flora of Tropical East Africa The ''Flora of Tropical East Africa'' (FTEA) is a catalogue of all 12,104 known wild plant species in Uganda, Kenya, and Tanzania. The project began in 1948 and was finally completed in September 2012. Approximately 1,500 new plant species were d ...

'' (1959), two forms can be distinguished in this region (

Kenya ) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi ...

, Tanzania,

Uganda }), is a landlocked country in East Africa. The country is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the south by Tanzania. The sou ...

), race A is distinguished by generally smooth features, whereas race B is more hairy. Ross (1979) notes all trees in the south of central Tanzania belong to race B.FAO
Handbook on Seeds of Dry-Zone Acacias
/ref> Similarly, Nongonierma described two forms for Senegal, var. ''glabra'' and var. ''pseudoglabra'', but his distinction is disregarded taxonomically as of 2007.

Description

It is a thorny

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that ar ...

growing up tall and in trunk diameter. Its deep-penetrating

tap root A taproot is a large, central, and dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward. In some plants, such as the carrot, the taproo ...

makes it highly resistant to drought. The bark is grey, and fissured when old. There are 11,000 seeds/kg.

Distribution

Southern Africa Southern Africa is the southernmost subregion of the African continent, south of the Congo and Tanzania. The physical location is the large part of Africa to the south of the extensive Congo River basin. Southern Africa is home to a number ...

it is absent throughout most of the territory, avoiding dry and upland areas or areas of winter rainfall, but occurs along the floodplains of the

Zambezi The Zambezi River (also spelled Zambeze and Zambesi) is the fourth-longest river in Africa, the longest east-flowing river in Africa and the largest flowing into the Indian Ocean from Africa. Its drainage basin covers , slightly less than ...

and

Limpopo Limpopo is the northernmost province of South Africa. It is named after the Limpopo River, which forms the province's western and northern borders. The capital and largest city in the province is Polokwane, while the provincial legislature i ...

, in

Kruger National Park Kruger National Park is a South African National Park and one of the largest game reserves in Africa. It covers an area of in the provinces of Limpopo and Mpumalanga in northeastern South Africa, and extends from north to south and from ea ...

, Pongoland, around

Gaborone Gaborone ( , , ) is the capital and largest city of Botswana with a population of 246,325 based on the 2022 census, about 10% of the total population of Botswana. Its agglomeration is home to 421,907 inhabitants at the 2011 census. Gaboron ...

, in the northern Okavango, the

Caprivi Strip The Caprivi Strip, also known simply as Caprivi, is a geographic salient protruding from the northeastern corner of Namibia. It is surrounded by Botswana to the south and Angola and Zambia to the north. Namibia, Botswana and Zambia meet at a ...

Kaokoveld The Kaokoveld Desert is a coastal desert of northern Namibia and southern Angola. Setting The Kaokoveld Desert occupies a coastal strip covering , from 13° to 21°S and is bounded by the Atlantic Ocean to the west, the Namibian savanna wood ...

, western Gaza and

Maputo Province Maputo Province is a province of Mozambique; the province excludes the city of Maputo (which comprises a separate province). The province has an area of and a population of 1,968,906 (2017 census). Its capital is the city of Matola. Geography ...

. In the rest of Africa it is absent from deserts, areas of high rainfall,

tropical rainforest Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as ''lowland equat ...

s and mountainous areas, but occurs throughout the eastern half of the continent from the southern coast in

Maputaland Maputaland is a natural region of Southern Africa. It is located in the northern part of the province of KwaZulu-Natal, South Africa between Eswatini and the coast. In a wider sense it may also include the southernmost region of Mozambique. The ...

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Medite ...

, throughout the Subsaharan

Sahel The Sahel (; ar, ساحل ' , "coast, shore") is a region in North Africa. It is defined as the ecoclimatic and biogeographic realm of transition between the Sahara to the north and the Sudanian savanna to the south. Having a hot semi-arid cli ...

and the

Horn of Africa The Horn of Africa (HoA), also known as the Somali Peninsula, is a large peninsula and geopolitical region in East Africa.Robert Stock, ''Africa South of the Sahara, Second Edition: A Geographical Interpretation'', (The Guilford Press; 2004), ...

. In Northern Africa, besides in Egypt it also occurs in

Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ...

, it does not occur in

Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to ...

proper, but it is found in

Western Sahara Western Sahara ( '; ; ) is a disputed territory on the northwest coast and in the Maghreb region of North and West Africa. About 20% of the territory is controlled by the self-proclaimed Sahrawi Arab Democratic Republic (SADR), while th ...

. In Asia it is thought to be native to

Yemen Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the north and Oman to the northeast and s ...

and

Saudi Arabia Saudi Arabia, officially the Kingdom of Saudi Arabia (KSA), is a country in Western Asia. It covers the bulk of the Arabian Peninsula, and has a land area of about , making it the List of Asian countries by area, fifth-largest country in Asia ...

in the

Arabian Peninsula The Arabian Peninsula, (; ar, شِبْهُ الْجَزِيرَةِ الْعَرَبِيَّة, , "Arabian Peninsula" or , , "Island of the Arabs") or Arabia, is a peninsula of Western Asia, situated northeast of Africa on the Arabian Plate ...

Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Tu ...

, and in the

Levant The Levant () is an approximate historical geographical term referring to a large area in the Eastern Mediterranean region of Western Asia. In its narrowest sense, which is in use today in archaeology and other cultural contexts, it is eq ...

in Israel,

Syria Syria ( ar, سُورِيَا or سُورِيَة, translit=Sūriyā), officially the Syrian Arab Republic ( ar, الجمهورية العربية السورية, al-Jumhūrīyah al-ʻArabīyah as-Sūrīyah), is a Western Asian country loc ...

and

Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the Lebanese Republic, is a country in Western Asia. It is located between Syria to the north and east and Israel to the south, while Cyprus li ...

. A population is found in

relict A relict is a surviving remnant of a natural phenomenon. Biology A relict (or relic) is an organism that at an earlier time was abundant in a large area but now occurs at only one or a few small areas. Geology and geomorphology In geology, a r ...

groves in

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

(in the Shimron nature reserve, near the community settlement of Timrat). All of the trees in a given grove are genetically identical and seem to have multiplied by

vegetative reproduction Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment or cutting of the parent plant or speci ...

only, for thousands of years. Introduced populations are found on

Cyprus Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is ge ...

and

Ascension Island Ascension Island is an isolated volcanic island, 7°56′ south of the Equator in the South Atlantic Ocean. It is about from the coast of Africa and from the coast of South America. It is governed as part of the British Overseas Territory ...

, and in

and

Karnataka Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Karn ...

(India).

Ecology

In Southern Africa it usually grows on alluvial floodplains in bushveld, on riverbanks or flood pans, in swamps, or in dry watercourses that can flood during rains. It grows in woodland in the

, along the

and in

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 ...

. In the Sahel it grows gregariously in groves. It grows in savannahs in Sudan and the Sahel, in heavy soils with good drainage. In tropical eastern Africa it sometimes occurs singly, but may often be the dominant species in dry woodlands. In the Sahel it has an irregular, clumped distribution, absent in some areas but is sometimes locally common. It grows in areas with of rain per year.

Cultivation and uses

''Faidherbia albida'' is important in the

for raising

bee Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyletic lineage within the superfa ...

s, since its flowers provide bee

forage Forage is a plant material (mainly plant leaves and stems) eaten by grazing livestock. Historically, the term ''forage'' has meant only plants eaten by the animals directly as pasture, crop residue, or immature cereal crops, but it is also use ...

at the close of the rainy season, when most other local plants do not.World AgroForestry
/ref> The seed pods are used for raising

livestock Livestock are the domesticated animals raised in an agricultural setting to provide labor and produce diversified products for consumption such as meat, eggs, milk, fur, leather, and wool. The term is sometimes used to refer solely to animals ...

, are used as

camel A camel (from: la, camelus and grc-gre, κάμηλος (''kamēlos'') from Hebrew or Phoenician: גָמָל ''gāmāl''.) is an even-toed ungulate in the genus ''Camelus'' that bears distinctive fatty deposits known as "humps" on its back. C ...

fodder Fodder (), also called provender (), is any agricultural foodstuff used specifically to feed domesticated livestock, such as cattle, rabbits, sheep, horses, chickens and pigs. "Fodder" refers particularly to food given to the animals (in ...

Nigeria Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of G ...

, and are eaten by stock and game in Southern Africa. They are relished by elephant, antelope, buffalo, baboons and various browsers and grazers, though strangely ignored by warthog and zebra. The wood is used for canoes, mortars, and pestles and the bark is pounded in Nigeria and used as a packing material on pack animals. The wood has a density of about 560 kg/m³ at a water content of 12%.FAO
Role of acacia species in the rural economy of dry Africa and the Near East
/ref> The energy value of the wood as fuel is 19.741 kJ/kg. Ashes of the wood are used in making soap and as a depilatory and tanning agent for hides. The wood is used for carving; the thorny branches useful for a natural barbed fence. Pods and foliage are highly regarded as livestock fodder. Some 90% of Senegalese farmers interviewed by Felker (1981) collected, stored, and rationed ''Acacia albida'' pods to livestock. Zimbabweans use the pods to stupefy fish. Humans eat the boiled seeds in times of scarcity in Zimbabwe. It is valued in

agroforestry Agroforestry is a land use management system in which trees or shrubs are grown around or among crops or pastureland. Trees produce a wide range of useful and marketable products from fruits/nuts, medicines, wood products, etc. This intentional ...

as it fixes nitrogen, and a high yield has been achieved in at least one test plot of maize crops grown amongst the trees at a density of 100 to 25 tree per hectare. According to a 2018 article by

the Guardian ''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Gu ...

monoculture In agriculture, monoculture is the practice of growing one crop species in a field at a time. Monoculture is widely used in intensive farming and in organic farming: both a 1,000-hectare/ acre cornfield and a 10-ha/acre field of organic kale ...

s of this species are popular in parts of

Niger ) , official_languages = , languages_type = National languagesHausa, to use for

intercropping Intercropping is a multiple cropping practice that involves growing two or more crops in proximity. In other words, intercropping is the cultivation of two or more crops simultaneously on the same field. The most common goal of intercropping is ...

. It is also used for

erosion control Erosion control is the practice of preventing or controlling wind or water erosion in agriculture, land development, coastal areas, river banks and construction. Effective erosion controls handle surface runoff and are important techniques in ...

. Its value as an agroforestry tree larges partially in the fact that the tree drops its leaves during the rainy season, and therefore does not compete with crops for sunlight. The tree's use in farmer-managed natural regeneration of degraded soils throughout southern Niger since the 1990s has been described as “the biggest positive environmental transformation in the Sahel, and possibly in Africa.”

Medicinal uses

An extract is used to treat ocular infections in

farm A farm (also called an agricultural holding) is an area of land that is devoted primarily to agricultural processes with the primary objective of producing food and other crops; it is the basic facility in food production. The name is used f ...

animals. The bark is used in traditional medicine in Southern Africa, and Niger.

Cultural significance

''Faiderbia albida'' is known in the

Bambara language Bambara (Arabic script: ), also known as Bamana ( N'Ko script: ) or Bamanankan (), is a lingua franca and national language of Mali spoken by perhaps 15 million people, natively by 5 million Bambara people and about 10 million second-langua ...

as ''balanzan'' and is the official tree of the city of Segou on the

Niger River The Niger River ( ; ) is the main river of West Africa, extending about . Its drainage basin is in area. Its source is in the Guinea Highlands in south-eastern Guinea near the Sierra Leone border. It runs in a crescent shape through Ma ...

in central

Mali Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Mali ...

.BBC News story on Mali's ''Faidherbia albida'' trees
/ref> According to legend, Segou is home to 4,444 ''balanzan'' trees, plus one mysterious "missing tree" the location of which cannot be identified. In Serer and some of the Cangin languages, it is called ''Saas''.

Saas Software as a service (SaaS ) is a software licensing and delivery model in which software is licensed on a subscription basis and is centrally hosted. SaaS is also known as "on-demand software" and Web-based/Web-hosted software. SaaS is co ...

figures prominently in the creation myth of the Serer people. According to their

creation myth A creation myth (or cosmogonic myth) is a symbolic narrative of how the world began and how people first came to inhabit it., "Creation myths are symbolic stories describing how the universe and its inhabitants came to be. Creation myths develop ...

, it is the

tree of life The tree of life is a fundamental archetype in many of the world's mythological, religious, and philosophical traditions. It is closely related to the concept of the sacred tree.Giovino, Mariana (2007). ''The Assyrian Sacred Tree: A Histor ...

and fertility. Gravrand, Henry, "La civilisation sereer", vol. II : Pangool, Nouvelles éditions africaines,

Dakar Dakar ( ; ; wo, Ndakaaru) (from daqaar ''tamarind''), is the capital and largest city of Senegal. The city of Dakar proper has a population of 1,030,594, whereas the population of the Dakar metropolitan area is estimated at 3.94 million in ...

, 1990, pp. 125–127,

Conservation

''Faidherbia albida'' is not listed as being a

threatened species Threatened species are any species (including animals, plants and fungi) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of ''critical depen ...

References

External links

* * * {{Taxonbar, from1=Q5429644, from2=Q483240 Mimosoids Monotypic Fabaceae genera Trees of Africa Flora of Western Asia Flora of Saudi Arabia Medicinal plants of Africa Medicinal plants of Asia Entheogens Forages Taxa named by Auguste Chevalier