Cover lightly with sand and do not allow to dry out. Sweet thorn (Vachellia karroo), the most common of these, detrimentally affects the quality of grazing in the province, writes independent agricultural consultant Dr Louis du Pisani. Karoo Mimosa . The roots are invasive, so avoid planting near paving or buildings. Can harvest the gum (sap) for eating purposes. And Acacia natalitia (pale barked sweet thorn) with 6-12 p/p and a greyish white bark, with a wider distributuion, replacing Acacia karroo east of the Great Escarpement area in the summer rainfall region. Sweet thorn encroachment in the Eastern Cape Farmer's Weekly | July 31, 2020 A number of woody encroacher species are expanding both their distribution and density in the Eastern Cape. Uses: Gum (sap) is eaten, used in pharmacaceutical products, for confectionary and as an adhesive, wood for woodworking, colourful garden plant (in spring), attracts insects and birds, for shade and wind breaks and has traditional medicinal uses. The flowers produce lots of nectar and pollen for bee-farming and the honey has a pleasant flavour. It is fast growing, tolerates damp growing conditions, attracts insects and birds to the garden and […] The dark green leaves are finely textured. It can flower up to 6 times a year. It has the ability to fix nitrogen in the soil, making it more fertile for grasses. Joffe, P. 2001. Acacia inconflagrabilis Gerstner Acacia karoo Hayne, ortho. Common names: sweet thorn (English); soetdoring (Afrikaans); mookana (North Sotho); mooka (Tswana); umuNga (Zulu) (Xhosa). The Act requires that all sightings to be reported to Biosecurity Queensland within 24 hours. It is named after the Karoo region of the former Cape Province of South Africa, where it is common, and often the only tree found. Bisexual Flowers are small and actinomorphic.Fruit – dehiscent pod, constricted between the flat Seeds.. The bipinnate, drooping Leaves have spinescent stipules. It is a deciduous thorn tree which grows at an average rate. Acacia karroo (recently renamed as Vachellia karroo) is 'n pioneer species. In some other thorny acacia species, the thorns are not stipular in origin and are called "prickles". Sweet thorn (Acacia karroo Hayne or Vachellia karroo (Hayne) Banfi & Galasso) is a very variable and very thorny tree species that is widespread in Africa and grows to a height of 5-12 m.It is a multipurpose tree providing food, feed, commercial products, and environmental services. It is a most useful tree for small holdings and farms where it can be planted for shade and as a windbreak. The sweet thorn makes a beautiful garden specimen. 10 cm). [3] Sweet thorn It has a variable shape and size, reaching a maximum of about 12m. Barnes, R D et al : 1996 Acacia karroo. Pretoria. In 2008, A. karroo was renamed ‘Vachellia karroo (Hayne) Banfi and Galasso’ following a review of the Acacia genus by the International Botanical Congress (Carruthers and Robin 2010). It is variable in shape and size, reaching a maximum of about 12m where there is good water. They may be held at 90° to the stem or raked forward slightly. Protective, long, white spines on a young Sweet Thorn (Vachellia karroo), growing near a permanent stream near Colesberg in … Sow in spring; Germination time: 3-12 days; Sow seeds 2-5 mm deep in sandy soil mix. The leaves are nutritious. SA Tree No: 172. Mimosaceae (Thorn-tree family) Sweet Thorn (E) Soetdoring (A) Mookana (NS) Mooka (Tsw) umuNga (Z) Native to Southern Africa Tree Tree no. This is apparently similar to gum arabic which is used as a water soluble glue. Pooley, E. 1993. Germination usually takes 3 - 12 days. The paired thorns are greyish to white, long and straight. Medicinal uses are wound poultices to eye treatments and cold remedies. Medicinal properties, bark used to tan leather red, firewood, gum eaten by bush babies, seeds are a coffee substitute. The bipinnate, drooping Leaves have spinescent stipules. Description. TREE OF THE DAY : Vachellia karroo . Sweet thorn (Vachellia karroo) C020/7401. Alice Aubrey with additions by Yvonne ReynoldsWitwatersrand National Botanical GardenJanuary 2002Â, SA Distribution: Eastern Cape, Mpumalanga, Flowering season: Early Summer, Late Summer. 43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi) This image is not available for purchase in your country. Planted A. karroo tree: Sweet thorn planted in Bulawayo, Zimbabwe after 12 years (6 m high; d.b.h. This is an ecologically and economically important species as almost all of its parts, including bark, pods, seeds, leaves and thorns, are extremely useful to both humans and animals. Bisexual Flowers are small and actinomorphic.Fruit – dehiscent pod, constricted between the flat Seeds.. The seed pods are flat and crescent shaped, sometimes with constrictions between the seeds. Briza. Acacia karroo (= Vachellia karroo) is a very hardy, semi-deciduous, fast-growing and drought-resistant tree. It is integrally part of our country's history having been used for everything from raft-making to sewing needles and fencing for the houses of the royal Zulu women. Oxford Forestry Institute. Click here to register. Many insects visit and pollinate these flowers. A beautiful and useful tree that occurs from the Western Cape (RSA) to Zambia and Angola. Johannesburg. The Complete Field Guide to Trees of Natal, Zululand & Transkei Natal Flora Publications Trust. Known for many years as Acacia karroo, this is one of South Africa's most beautiful and useful trees. They are green when young becoming brown and dry. Cape Gum. Acacia eburnea sensu auct. Vachellia karroo (Acacia karroo) Vachellia karroo (Acacia karroo) Quantity . It also had commercial value in the past when the gum was exported as "Cape Gum" for making confectionary. Vachellia karroo, also commonly known as the Sweet Thorn, is part of the acacia specie and native to southern Africa. Technically the thorns are called "spines" and are developed from modified stipules (small, leaf-like scales, seen at the base of the leaf-stalk). Choose a country to see content specific to your location, Cape Thorn Tree, Umbrella Thorn, White Thorn, Mimosa Thorn, Cockspur Thorn, Acacia, Common Acacia, Karoo Thorn, Cape Gum, Karoodoring, Doringboom, Soetdoring, Witdoring (Afr. The rough, dark brown bark is also most attractive. Grasses and other plants thrive in its shade, covering the bare earth. Acacia karroo (recently renamed as Vachellia karroo) is 'n pioneer species. Palmer, E and Pitman, N. 1972. The species’ name comes from the sweet-tasting gum which is exuded from ‘wounds’ on damaged trees. Mimosa Thorn . Is usually linked to the sweetveld (good grazing and fertile soils). Mey. The crown is rounded and branches fairly low down on the trunk. Thomas, V and Grant, R. 1998. Venter, F and J-A. Vachellia karroo, also known as Cape Thorn Tree, is an evergreen tree in Southern Africa growing about 15 m in height. The bark is red on young branches then becomes dark and rough as the tree matures. While many farmers consider the common sweet thorn (Vachellia karroo, formerly Acacia karroo) an unwelcome indigenous invader, researchers point out that it is one of the best sources of feed and shelter in dry regions. On mature trees, the thorns may be quite short. It bears quantities of sweetly scented, golden-yellow mimosa-like balls of flowers several times during summer. Mimosaceae (Thorn-tree family) Sweet Thorn (E) Soetdoring (A) Mookana (NS) Mooka (Tsw) umuNga (Z) Native to Southern Africa Tree Tree no. The tree can live up to 40 years, is a very adaptable pioneer and re-sprouter (grows up to 1m per year). The gum can be used as an adhesive and the wood for woodworking. Used for chemical products, forage, domestic uses, environmental management, medicinal purposes, fibre, food, drink, and wood. Karroo thorn . Acacia hirtella E. Mey. Vachellia karroo has a life span of 30-40 years and is an adaptable pioneer, able to establishing itself without shade, shelter or protection from grass fires. Sweet thorns are highly ornamental plants that can be grown as a multi-stemmed shrub or pruned to a single-stemmed tree. It is a very spectacular tree when in full flower. An icon of the South African veld, Vachellia karroo is a popular choice among local gardeners as a pavement tree or as a shade tree in larger gardens. Briza Publications. Common names: Sweet thorn (English); Soetdoring (Afrikaans) The beautiful Acacia karroo is one of South Africa's most stunning and useful trees. The sweet thorn is very adaptable to soil types and is frost and drought hardy. The bark contains tannin which is used to tan leather to a reddish colour. The gum is edible. Vachellia karroo, previously known as Acacia karroo, is one of the fastest-growing acacias, and produces high-density wood (800-890 kg/m³). Jacana Education. While it lives, Acacia karroo is an all-in-one supermarket for browsers and grazers. In their native South Africa, Acacia karoo trees are beneficial wildlife trees. The bark is red on young branches, darkening and becoming rough with age. Edible gum. Oxford. Caterpillars of 10 species of butterflies are dependant on the tree for survival. Cape Thorn-Tree. : 172. Trees of Southern Africa: Volume 2. Vachellia karroo has a rounded crown. Description. D.P. Semi-deciduous Full sun Frost tolerant Low water requirements Medium water requirements Fast grower Fragrant flowers Vachellia karroo ( Acacia karroo ) Sweet Thorn. Plant with plenty of compost, bonemeal or superphosphates (commercial tree tablets also work well). General Info. Vachellia karroo. The "Dune Forest" form found along the coast of Kwazulu-Natal northwards of the Tugela river has soft wood so would not be suitable for woodworking. It is an indicator of sweet veld which is prized for the good grazing and fertile soils. Soetdoring (A) Suurdoring (A) Karoodoring (A) Mookana (N.S) Umunga (Z) mooka (T) Description. It establishes quite quickly in a stripped area and offers a micro-climate for … Vachellia karroo. (presently Vachellia karroo) Sweet thorn . The bark, leaves and gum are usually used. The name Acacia is derived from Greek "akis" a point or barb. Tree has a spreading, rounded crown up to 20m high. General Info. Sweet Thorn Information. Read fascinating facts and browse beautiful, detailed photos of the sweet thorn (Acacia karroo): one of thousands of plant species growing at the Eden Project in Cornwall. The leaves are dark green and finely textured. The sweet thorn has many medicinal uses ranging from wound poultices to eye treatments and cold remedies. https://worldoffloweringplants.com/vachellia-karroo-sweet-thorn Sweet Thorn. Sweet thorns are highly ornamental plants that can be grown as a multi-stemmed shrub or pruned to a single-stemmed tree. Vachellia karroo (Sweet Thorn) is a shrub or small to a medium-sized tree that grows up to 40 feet (12 m) tall. Vachellia karroo, Acacia karroo Family: Fabaceae Subfamily: Mimosoideae Sweet Thorn Origin: South Africa. Skinner, J.D, Smithers, R.H.N. Cape Town. non (L.) Willd. 1996. It bears sweetly scented, golden-yellow mimosa-like balls of flowers several times during summer. Seedling trays with seedling mix can be used, or the seeds could be sown directly into black bags. Acacia natalitiaE. Whitethorn . Various commercial products are also obtained … Will invite insects and birds to the garden and makes … Acacia horrida sensu auct. Vachellia karroo is commonly known by the name Sweet Thorn. It is very widespread throughout southern Africa and there are different forms in some places, which can be confusing. It is integrally part of Africa's history having been used for everything from raft-making to sewing needles and fencing for the houses of the royal Zulu women. An icon of the South African veld, Vachellia karroo is a popular choice among local gardeners as a pavement tree or as a shade tree in larger gardens. Medicinal properties, bark used to tan leather red, firewood, gum eaten by bush babies, seeds are a coffee substitute. Once over a year old, seedlings can resprout after fire. mult. Karroo thorn is a prohibited invasive plant under the Biosecurity Act 2014.; It must not be given away, sold, or released into the environment without a permit. The bright yellow flowers look very striking against the dark green foliage. Umbrella Thorn. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. Vachellia karroo, commonly known as the Sweet thorn, is a species of acacia, native to southern Africa from southern Angola east to Mozambique, and south to South Africa. Vachellia karroo is commonly known by the name Sweet Thorn.Sweet thorns are highly ornamental plants that can be grown as a multi-stemmed shrub or pruned to a single-stemmed tree.Acacia karroo has a rounded crown, branching fairly low down on the trunk and can reach a maximum height of 12 m where water is plentiful.The bark is red on young branches, darkening and becoming rough with age. It was a very welcome sight to early travelers and nomads. Tropical Forestry Papers 32. Sweet Thorn Overview. Vachellia karroo, the Sweet Thorn, is, in cultivation, a medium to large single stemmed, deciduous tree. Sometimes an attractive reddish colour can be seen in the deep bark fissures The leaves are finely textured and dark green. Bonsai. Making the most of Indigenous Trees. This tree has a long taproot which enables it to use water and nutrients from deep underground, this and its ability to fix nitrogen, lead to grasses and other plants thriving in its shade. Cape Town. Vachellia karroo is a useful and widespread tree in Africa. Vachellia karroo is commonly known by the name Sweet Thorn. SA Tree No: 172. The Mammals of the Southern African Subregion. Sweet thorn is very frost hardy and moderately drought tolerant. Karroo is one of the old spellings of karoo which cannot be corrected because of the laws governing botanical nomenclature (giving of names). 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