Stink shepherd's tree | |
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Nominate subspecies in Namibia and B. f. subsp. rehmanniana in Limpopo | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Brassicales |
Family: | Capparaceae |
Genus: | Boscia |
Species: | B. foetida |
Binomial name | |
Boscia foetida Schinz, 1888 | |
Boscia foetida, commonly known as the stink shepherd's tree and the smelly shepherd's bush, [1] is an evergreen shrub or tree that is native to the warmer and drier parts southern Africa. [2] It is found in semi-desert and arid bushveld, and in the west it occurs commonly in areas which are otherwise sparsely wooded. [3] It is known for the particularly unpleasant smell of its flowers which appear during early spring, to which its specific name foetida alludes. Its freshly cut wood likewise has an unpleasant smell, and has traditional medicinal and magical uses, for instance as a protection against lightning. [4] In central Botswana the village of Mopipi is named after this species.
It has several or many stems in the west, but is often single-stemmed in the east. It has a flattish, spreading crown, and is densely branched with some branches ending in spines. [5] In Namibia it is often a shrub measuring about 1 m tall and 3 m wide, but it may also be a tree of up to 3 meters or over. [3] It is similar to the closely related B. albitrunca , which is however distinguishable from most subspecies by its discolorous and distinctly larger leaves, and its smooth fruit. It may also be confused with Maerua parvifolia . [3]
The smooth bark is pale grey to grey, [6] with darker bark exposed in the fissures. [3] Young branchlets have grey bark with a plum-coloured underlayer. [3]
The shortly petiolate [6] leaves are arranged in tight clusters on little knobs. [5] The small, hard leaves usually measure less than 8 mm in length, [5] but rarely up to 13 mm. They are grey-green in colour, concolorous in the west and discolorous in the east, and appear dark green from a distance. Foliage is browsed by game and livestock. [3]
The small, greenish flowers lack petals but have prominent stamens, and a gynophore which equals the ovary and style in length. [6] They are clustered in axillary racemes or may be reduced to axillary fascicles. [7] They emit a rancid odour, [2] after which the tree is named. Birds may feed on the flowers or use it as nesting material. [3]
It produces abundant globose fruit in summer that ripen to a yellowish or pale-brown colour. [3] They have a velvet-textured exterior, as opposed to those of B. albitrunca , which are smooth. They are about 1 cm in diameter [6] and are eaten by rodents, birds and people. [4] The fruit usually contains a single brown seed. [7]
It occurs in Namibia up to the Kunene region, the Northern Cape, central Botswana to southern Zimbabwe and the Transvaal bushveld and lowveld, eastern Eswatini, KwaZulu-Natal southwards to the Tugela valley, and in southernmost Mozambique. It grows mainly on plains [3] in semi-desert or arid bushveld. It is also present on hillsides, rocky outcrops, termite mounds [6] [5] or along dry river courses. It grows on rocky, stony or gravel substrates in the west, and is absent from sand except where a rocky substrate is present. [3]
There are five subspecies:
Veld, also spelled veldt, is a type of wide open rural landscape in Southern Africa. Particularly, it is a flat area covered in grass or low scrub, especially in the countries of South Africa, Lesotho, Eswatini, Zimbabwe and Botswana. A certain sub-tropical woodland ecoregion of Southern Africa has been officially defined as the Bushveld by the World Wide Fund for Nature. Trees are not abundant—frost, fire and grazing animals allow grass to grow but prevent the build-up of dense foliage.
Combretum imberbe is a characteristic and often impressive bushwillow species of the southern Afrotropics. The medium to large tree has a sparse, semi-deciduous canopy of grey-green leaves. The twigs and leaves are hairless as the name imberbe suggests. Its heartwood is dark brown, close-grained, and very hard and heavy, as suggested by its vernacular name. The durable heartwood is much sought after in the woodcarving industry. The Hereros and Ovambos of Namibia attach special cultural and religious significance to the tree, as to them it is the great ancestor of all animals and people, which must be passed with respect.
Strychnos spinosa, the Natal orange, is a tree indigenous to tropical and subtropical Africa. It produces sweet-sour, yellow fruits, containing numerous hard brown seeds. Greenish-white flowers grow in dense heads at the ends of branches. The fruits tend to appear only after good rains. It is related to the deadly Strychnos nux-vomica, 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, monkeys, bushpig, nyala and eland eat the fruit. The leaves are a popular food source for browsers such as duiker, kudu, impala, steenbok, nyala and elephant.
Boscia albitrunca, commonly known as the shepherd tree or shepherd's tree, is a protected tree in South Africa. The species epithet "albitrunca" refers to the oftentimes white trunk. Traditionally, the shepherd tree was used by Dutch settlers, "boers", to create a variant of coffee that is derived from the roots of the tree. It is an evergreen tree native to southern and tropical Africa, living in the hot, dry, and often brackish low-lying areas, sometimes on abundant lime or occasionally found in rocky terrain. It is a common tree of the Kalahari, bushveld and lowveld. It is one of the most important forage trees in the Kalahari.
Protea caffra, native to South Africa, is a small tree or shrub which occurs in open or wooded grassland, usually on rocky ridges. Its leaves are leathery and hairless. The flower head is solitary or in clusters of 3 or 4 with the involucral bracts a pale red, pink or cream colour. The fruit is a densely hairy nut. The species is highly variable and has several subspecies.
The black-tailed tree rat, also called black-tailed acacia rat or black-tailed thallomys,, is a species of rodent in the family Muridae. It is found in Angola, Botswana, Namibia and South Africa, where its natural habitat is subtropical or tropical dry shrubland. It is both nocturnal and arboreal and makes bulky nests in the trees, often acacias, where it feeds on leaves and buds.
Capparis fascicularis, the zigzag caper-bush, is a plant in the Capparaceae family and is native to Africa.
Ozoroa paniculosa, commonly known as the bushveld ozoroa or common resin tree, is a small tree belonging to the mango family or Anacardiaceae. It is native to southern Africa, where it occurs in Zimbabwe, South Africa, Mozambique, Botswana and Namibia. It grows to a height of about 6 metres at high elevations, but may reach 15 metres in warmer, low-lying areas. This genus currently has some 28 species and occurs from southern Africa to the Arabian Peninsula.
Ficus ingens, the red-leaved fig, is a fig species with an extensive range in the subtropical to dry tropical regions of Africa and southern Arabia. Despite its specific name, which means "huge", or "vast", it is usually a shrub or tree of modest proportions. It is a fig of variable habit depending on the local climate and substrate, typically a stunted subshrub on elevated rocky ridges, or potentially a large tree on warmer plains and lowlands. In 1829 the missionary Robert Moffat found a rare giant specimen, into which seventeen thatch huts of a native tribe were placed, so as to be out of reach of lions.
Combretum apiculatum is a species of tree in the family Combretaceae known by the common name red bushwillow. It is native to the mesic to semi-arid savanna regions of Africa, southwards of the equator.
Strychnos madagascariensis, the black monkey orange, is an African tropical and sub-tropical tree belonging to the Loganiaceae family. It is a tree with characteristically large fruit but can confused with some other species of the genus.
Euclea crispa, commonly known as the blue guarri, is an Afrotropical plant species of the family Ebenaceae. The hardy and evergreen plants may form a dense stand of shrubs, or grow to tree size. It is widespread and common in the interior regions of southern Africa, and occurs northward to the tropics. Though some are present near the South African south and east coasts, they generally occur at middle to high altitudes. It is readily recognizable from its much-branched structure and dull bluish foliage colour. Those bearing lanceolate leaves may however resemble the Wild olive, another common species of the interior plateaus.
Maerua angolensis is a 10m tall, occasionally deciduous tree of the Capparaceae or caper family, often growing on termitaria and in thickets fringing seasonal watercourses, up to 1800m. Though never common, it is widespread in tropical Africa and arid regions, being absent from high-rainfall regions.
Hibbertia auriculiflora is a species of flowering plant in the family Dilleniaceae and is endemic to northern parts of the Northern Territory. It is usually a short-lived perennial shrublet covered with hairs and scales and has mostly oblong to linear leaves. The flowers are usually arranged singly or in groups of two or three in leaf axils, with twenty-five to thirty-two stamens arranged in groups around the two carpels.
Hibbertia fractiflexa is a species of flowering plant in the family Dilleniaceae and is endemic to the Northern Territory. It is a small, multi-stemmed shrub with hairy foliage, elliptic leaves, and yellow flowers arranged in leaf axils with sixteen to twenty-two stamens arranged in groups around the two carpels.
Hibbertia oblongata is a species of flowering plant in the family Dilleniaceae and is endemic to northern Australia. It is an erect to spreading shrub with scaly foliage, elliptic to oblong leaves, and yellow flowers usually arranged singly in leaf axils, with 16 to 36 stamens arranged in bundles around the two carpels.
Tylecodon reticulatus is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae.
Tylecodon paniculatus, also known as butter bush, butter tree, butterboom or rooisuikerblom (Afrikaans), is a species of succulent plant in the genus Tylecodon belonging to the family Crassulaceae.