''Strychnos spinosa'', the Natal orange, is a tree indigenous to tropical and subtropical

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 ...

. It produces sweet-sour, yellow fruits, containing numerous hard brown seeds. Greenish-white flowers grow in dense heads at the ends of branches (Sep-Feb/Spring - summer). The

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in partic ...

s tend to appear only after good rains. It is related to the deadly ''

Strychnos nux-vomica ''Strychnos nux-vomica'', the strychnine tree, also known as nux vomica, poison fruit, semen strychnos, and quaker buttons, is a deciduous tree native to India and to southeast Asia. It is a medium-sized tree in the family Loganiaceae that grows ...

'', which contains strychnine. The smooth, hard fruit are large and green, ripen to yellow colour. Inside the fruit are tightly packed seeds, which may be toxic, surrounded by a fleshy, brown, edible covering. Animals such as

baboon Baboons are primates comprising the genus ''Papio'', one of the 23 genera of Old World monkeys. There are six species of baboon: the hamadryas baboon, the Guinea baboon, the olive baboon, the yellow baboon, the Kinda baboon and the chac ...

monkey Monkey is a common name that may refer to most mammals of the infraorder Simiiformes, also known as the simians. Traditionally, all animals in the group now known as simians are counted as monkeys except the apes, which constitutes an incom ...

bushpig :''"Bush pig" may also refer to the red river hog. The bushpig (''Potamochoerus larvatus'') is a member of the pig family that inhabits forests, woodland, riverine vegetation and cultivated areas in East and Southern Africa. Probably introdu ...

nyala The lowland nyala or simply nyala (''Tragelaphus angasii'') is a spiral-horned antelope native to southern Africa. It is a species of the family Bovidae and genus '' Tragelaphus'', previously placed in genus ''Nyala''. It was first described i ...

and eland eat the fruit. The leaves are a popular food source for browsers such as

duiker A duiker is a small to medium-sized brown antelope native to sub-Saharan Africa, found in heavily wooded areas. The 22 extant species, including three sometimes considered to be subspecies of the other species, form the subfamily Cephalophinae ...

kudu The kudus are two species of antelope of the genus ''Tragelaphus'': * Lesser kudu, ''Tragelaphus imberbis'', of eastern Africa * Greater kudu, ''Tragelaphus strepsiceros'', of eastern and southern Africa The two species look similar, thoug ...

impala The impala or rooibok (''Aepyceros melampus'') is a medium-sized antelope found in eastern and southern Africa. The only extant member of the genus ''Aepyceros'' and tribe Aepycerotini, it was first described to European audiences by Ger ...

steenbok The steenbok (''Raphicerus campestris'') is a common small antelope of southern and eastern Africa. It is sometimes known as the steinbuck or steinbok. Description Steenbok resemble small oribi, standing 45–60 cm (16"–24") at the ...

and

elephant Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae ...

Distribution

This tree can be found growing singly in well-drained soils. It is found in

bushveld The Bushveld (from af, bosveld, af, bos 'bush' and af, veld) is a sub-tropical woodland ecoregion of Southern Africa. It encompasses most of Limpopo Province and a small part of the North West Province of South Africa, the Central and Nort ...

, riverine fringes, sand forest and coastal bush from the Eastern Cape to

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 loca ...

, northwards to

Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Mala ...

, and inland to

Eswatini Eswatini ( ; ss, eSwatini ), officially the Kingdom of Eswatini and formerly named Swaziland ( ; officially renamed in 2018), is a landlocked country in Southern Africa. It is bordered by Mozambique to its northeast and South Africa to its ...

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 ...

, parts of

Zambia Zambia (), officially the Republic of Zambia, is a landlocked country at the crossroads of Central, Southern and East Africa, although it is typically referred to as being in Southern Africa at its most central point. Its neighbours are ...

, northern

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 Kal ...

, northern

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 e ...

Angola , national_anthem = "Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

Guinea Bissau Guinea-Bissau ( ; pt, Guiné-Bissau; ff, italic=no, 𞤘𞤭𞤲𞤫 𞤄𞤭𞤧𞤢𞥄𞤱𞤮, Gine-Bisaawo, script=Adlm; Mandinka: ''Gine-Bisawo''), officially the Republic of Guinea-Bissau ( pt, República da Guiné-Bissau, links=no ) ...

, to tropical Africa, north west Madagascar, south east Madagascar at

Sainte Luce Reserve Sainte Luce Reserve is a nature reserve in south-east Madagascar and part of one of the last remaining intact coastal rainforests in the country. The reserve is private, and has been managed by the Filana Association since 2010. It forms part of t ...

, Southern Kenya on the lower parts of Eastern arc mountains, north west Ethiopia, and western Tigray at

Kafta Sheraro National Park Kafta Sheraro National Park (; ) is a national park in the Tigray. Kafta Sheraro National Park is the only national park in Tigrai and one of the few high bio-diversified parks in East Africa. It was established more than 50 years ago by Raesi M ...

. It is able to grow in semi-arid and arid lands.

Traditional medicine

The plant, taken alone or in conjunction with extracts of other plants, is used by the

Tiv people Tiv (or Tiiv) are a Tivoid ethnic group. They constitute approximately 2.4% of Nigeria's total population, and number over 5 million individuals throughout Nigeria and Cameroon. The Tiv language is spoken by about 5 million people in ...

of Nigeria for snakebites, venereal disease, increasing the flow of breastmilk in lactating mothers, and enhancing physical strength.

Chemistry

iridoid Iridoids are a type of monoterpenoids in the general form of cyclopentanopyran, found in a wide variety of plants and some animals. They are biosynthetically derived from 8-oxogeranial. Iridoids are typically found in plants as glycosides, m ...

, sarracenin, has been isolated from the root bark of ''Strychnos spinosa''. Image:Strychnos spinosa fruit.jpg, Ripe fruit of the Strychnos spinosa tree. Image:Strychnos spinosa fruit dried.jpg, Dried out fruit of the Strychnos spinosa tree.

References

External links

*
PlantZAfrica.com description
*

{{Taxonbar, from=Q2704877 Fruits originating in Africa spinosa Trees of Africa Desert fruits