Description. Umbrella Thorn. non (L.) Willd. The crown is rounded and branches fairly low down on the trunk. Barnes, R D et al : 1996 Acacia karroo. Planted A. karroo tree: Sweet thorn planted in Bulawayo, Zimbabwe after 12 years (6 m high; d.b.h. Seed dispersal takes place this way. This apparently may be prevented by seasoning the wood in water for six months before use. The bark is red on young branches, darkening and becoming rough with age. Gwaze Bark: A. karroo bark: longitudinally fissured, can be either reddish brown to dark brown/black and rough, or pale greyish-white to greyish-brown and smooth. SA Tree No: 172. Pretoria. Can harvest the gum (sap) for eating purposes. In arid areas the sweet thorn is an indicator of water, both underground and surface. It is a deciduous thorn tree which grows at an average rate. Tree has a spreading, rounded crown up to 20m high. It has a variable shape and size, reaching a maximum of about 12m. Vachellia karroo ( Acacia karroo ) Sweet Thorn. Sweet thorn is an attractive and fragrant tree native to southern parts of Africa. Used for chemical products, forage, domestic uses, environmental management, medicinal purposes, fibre, food, drink, and wood. 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. Sweet thorn is very frost hardy and moderately drought tolerant. 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. In cool dry areas it becomes deciduous. Soetdoring (A) Suurdoring (A) Karoodoring (A) Mookana (N.S) Umunga (Z) mooka (T) Description. 43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi) This image is not available for purchase in your country. The bipinnate, drooping Leaves have spinescent stipules. Vachellia karroo ( Acacia karroo ) Sweet Thorn. Pooley, E. 1993. : 172. The Mammals of the Southern African Subregion. 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. Wait until they unfurl their second leaves before transplanting. It establishes quite quickly in a stripped area and offers a micro-climate for … Karroo is one of the old spellings of karoo which cannot be corrected because of the laws governing botanical nomenclature (giving of names). It is variable in shape and size, reaching a maximum of about 12m where there is good water. Sweet thorns are highly ornamental plants that can be grown as a multi-stemmed shrub or pruned to a single-stemmed tree. The sweet thorn has many medicinal uses ranging from wound poultices to eye treatments and cold remedies. (presently Vachellia karroo) Sweet thorn . Cape Town. 1990. Plant Type: Tree. [3] Sweet thorn A strong rope can be made from the inner bark which is pliable enough for rope-making when wet. This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. University of Pretoria. The thorns are paired, greyish to white and are long and straight. Bonsai. Vachellia karroo, the Sweet Thorn, is, in cultivation, a medium to large single stemmed, deciduous tree. Palmer, E and Pitman, N. 1972. The rough, dark brown bark is also most attractive. The thorns were even used by early naturalists to pin the insects they collected! Vachellia karroo may be found from the Western Cape through to Zambia and Angola.  In tropical Africa it is replaced by Acacia seyal, which has probably also been renamed. Sweet thorns are highly ornamental plants that can be grown as a multi-stemmed shrub or pruned to a single-stemmed tree. 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 has the ability to fix nitrogen in the soil, making it more fertile for grasses. The flowers produce lots of nectar and pollen for bee-farming and the honey has a pleasant flavour. 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. The bark contains tannin which is used to tan leather to a reddish colour. Common Acacia . It is an indicator of sweet veld which is prized for the good grazing and fertile soils. These include, the club-tailed charaxes (Charaxes zoolina zoolina) and the topaz-spotted blue (Azanus jesous). The name Acacia is derived from Greek "akis" a point or barb. Yellow pompom flowers appear in early summer and are pollinated by insects. In arid areas the sweet thorn is an indicator of water, both underground and surface. Vachellia karroo (Acacia karroo) Vachellia karroo (Acacia karroo) Quantity . There is no danger of hydrocyanic poisoning which is a self-protection mechanism used by many trees. Cape Town. Various commercial products are also obtained … mult. Acacia natalitiaE. 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. Oxford Forestry Institute. Vachellia karroo. Mimosa Thorn . The species’ name comes from the sweet-tasting gum which is exuded from ‘wounds’ on damaged trees. Vachellia karroo has a rounded crown. The yellow flowers are fragrant. It may be grown from seed which should be soaked in hot water and left overnight. 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. Acacia karroo Hayne Acacia dekindtiana A. Chev. SA Tree No: 172. The seedling will transplant well in spite of the long tap root. Alice Aubrey with additions by Yvonne ReynoldsWitwatersrand National Botanical GardenJanuary 2002Â, SA Distribution: Eastern Cape, Mpumalanga, Flowering season: Early Summer, Late Summer. Caterpillars of 10 species of butterflies are dependant on the tree for survival. Creative Gardening with Indigenous Plants: A South African Guide. Birds also like to make nests in thorn trees as the thorns offer them some protection from predators. Medicinal properties, bark used to tan leather red, firewood, gum eaten by bush babies, seeds are a coffee substitute. 50.1 MB (50.0 MB compressed) 5130 x 3413 pixels. 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. Acacia karroo (recently renamed as Vachellia karroo) is 'n pioneer species. While it lives, Acacia karroo is an all-in-one supermarket for browsers and grazers. D.P. The bark is red on young branches, darkening and becoming rough with age. The gum is edible. The heartwood is heavy and hard but susceptible to attack from borer. Acacia karroo (= Vachellia karroo) is a very hardy, semi-deciduous, fast-growing and drought-resistant tree. Durban. Vachellia Species, Karroo Thorn, Sweet Thorn (Vachellia karroo) by kennedyh Nov 30, 2007 7:14 PM Photo by JMK, Jimmy Aves Park, Pretoria (Creative Commons Attribution-Share Alike 3.0 Unported license/GNU FDL) It is a particularly good fodder tree, stock and game feed on the leaves, flowers and pods. Plant with plenty of compost, bonemeal or superphosphates (commercial tree tablets also work well). Will invite insects and birds to the garden and makes … 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. Vachellia karroo, the Sweet Thorn, is, in cultivation, a medium to large single stemmed, deciduous tree. Mey. On mature trees, the thorns may be quite short. The sweet thorn gets its common name from the gum which is exuded from wounds in the bark. 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. Birds also like to make nests in thorn trees as the thorns offer them some protection from predators. Vachellia karroo, previously known as Acacia karroo, is one of the fastest-growing acacias, and produces high-density wood (800-890 kg/m³). It is also used to treat cattle which have tulp poisoning (Homeria /Moraea spp) - bulbous plants which are poisonous to stock. Acacia karroo, Vachellia karroo.. Jacana Education. The pods split open allowing the seeds to fall to the ground. Thorns on African  vachellias and sengalias are important for identification, they are divided into 5 main groups according the size, shape and position of the thorns. ( 66 ) Page 1 of 1 ) until established superphosphates ( commercial tree also... 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