This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations .(March 2015) |
Khaya senegalensis | |
---|---|
Khaya senegalensis being used as a street tree in Hanoi, Vietnam | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Sapindales |
Family: | Meliaceae |
Genus: | Khaya |
Species: | K. senegalensis |
Binomial name | |
Khaya senegalensis (Desr.) A.Juss. | |
Khaya senegalensis is a species of tree in the Meliaceae family that is native to Africa. Common names include African mahogany, dry zone mahogany, Gambia mahogany, khaya wood, Senegal mahogany, cailcedrat, acajou, djalla, and bois rouge.
African mahogany is a fast-growing medium-sized tree which can obtain a height of up to 15–30 m in height and 1 m in diameter. The bark is dark grey to grey-brown while the heartwood is brown with a pink-red pigment made up of coarse interlocking grains. The tree is characterised by leaves arranged in a spiral formation clustered at the end of branches. The white flowers are sweet-scented; the fruit changes from grey to black when ripening.
The tree is native to Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Ivory Coast, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Mali, Niger, Nigeria, Senegal, Sierra Leone, Sudan, Togo, and Uganda. It is found in riparian forests and higher-rainfall savannah woodlands; in moist regions it is found on higher ground. Within its first year, the seedling develops a deep root system that makes it the most drought resistant member of its genus.
K. senegalensis has been extensively studied for trypanocidal activity. Atawodi et al 2003, Wurochekke and Nok 2004, Mikail 2009, Aderbauer et al 2008, Umar et al 2010, Adeiza et al 2010, Ibrahim et al 2008, and Ibrahim et al 2013a investigate extracts of stem bark both in vitro and in vivo in rats, against T. evansi , T. congolense and T. b. brucei . All showed promising results and a few demonstrated an effective dose. [2] The wood is used for a variety of purposes. It is often used conventionally for carpentry, interior trim, and construction. Traditionally the wood was used for dugout canoes, household implements, djembe, and fuel wood. The bitter tasting bark is used for a variety of medical purposes; it is taken against fever caused by malaria, stomach complaints, and headaches. It is applied externally to cure skin rashes, wounds, or any abnormality. It has been exported from West Africa (Gambia) to Europe since the first half of the 19th century and has been exploited heavily for its timber. It is now used more locally, and is planted ornamentally as a roadside tree.
Khaya senegalensis has experienced high amounts of exploitation, and little regeneration takes place once disturbance occurs. Because of this the IUCN Red List of Threatened Species considers it a vulnerable species. The only conservation which takes place are log export bans and legal protection in some countries.
Mahogany is a straight-grained, reddish-brown timber of three tropical hardwood species of the genus Swietenia, indigenous to the Americas and part of the pantropical chinaberry family, Meliaceae. Mahogany is used commercially for a wide variety of goods, due to its coloring and durable nature. It is naturally found within the Americas, but has also been imported to plantations across Asia and Oceania. The mahogany trade may have begun as early as the 16th century and flourished in the 17th and 18th centuries. In certain countries, mahogany is considered an invasive species.
Meliaceae, the mahogany family, is a flowering plant family of mostly trees and shrubs in the order Sapindales.
Dalbergia melanoxylon is a flowering plant in the family Fabaceae, native to seasonally dry regions of Africa from Senegal east to Eritrea and south to the north-eastern parts of South Africa. The tree is an important timber species in its native areas; it is used in the manufacture of musical instruments and fine furniture. Populations and genomic resources for genetic biodiversity maintenance in parts of its native range are threatened by overharvesting due to poor or absent conservation planning and by the species' low germination rates.
The National Park of Upper Niger is a national park in Guinea that was gazetted in January 1997 with a core area of 554 km2 (214 sq mi). The park protects important tracts of forest and savannah, and is considered a conservation priority for West Africa as a whole.
Entandrophragma cylindricum is a tree of the genus Entandrophragma of the family Meliaceae. It is commonly known as sapele or sapelli or sapele mahogany, as well as aboudikro, assi, and muyovu.
Khaya is a genus of five tree species in the mahogany family Meliaceae. The timber of Khaya is called African mahogany, and is valued as a substitute to American mahogany.
Swietenia is a genus of trees in the chinaberry family, Meliaceae. It occurs natively in the Neotropics, from southern Florida, the Caribbean, Mexico and Central America south to Bolivia. The genus is named for Dutch-Austrian physician Gerard van Swieten (1700-1772). The wood of Swietenia trees is known as mahogany.
Benin has varied resources of wildlife comprising flora and fauna, which are primarily protected in its two contiguous protected areas of the Pendjari National Park and W National Park. The former is known for many species of avifauna and the latter park is rich in mammals and predators. In addition, many other forest reserves are noted in the country but are not easily accessible, well protected or adequately surveyed for its wildlife resources. The protected area system of Benin defined as National Protected Area System is situated in the northern Benin, mostly with a woody savanna ecosystem. It covers 10.3% of the national territory and is part of the three nation transboundary W-Arly-Pendjari (WAP) complex.
Wildlife of the Gambia is dictated by several habitat zones over its total land area of about 10,000 km2. It is bound in the south by the savanna and on the north by the Sudanian woodlands. The habitats host abundant indigenous plants and animals, in addition to migrant species and newly planted species. They vary widely and consist of the marine system, coastal zone, estuary with mangrove vegetation coupled with Banto Faros, river banks with brackish and fresh water zones, swamps covered with forests and many wetlands.
Afzelia africana, the African mahogany, afzelia, lenke, lengue, apa, or doussi, is a tree species in the family Fabaceae.
Khaya anthotheca, with the common name East African mahogany, is a large tree species in the Meliaceae family, native to tropical Africa.
Khaya grandifoliola, also called African mahogany, Benin mahogany, large-leaved mahogany, or Senegal mahogany, is a species of plant in the family Meliaceae. It is found in Benin, the Democratic Republic of the Congo, Ivory Coast, Ghana, Guinea, Nigeria, Sudan, Togo, and Uganda. It is threatened by habitat loss.
Khaya ivorensis, also called African mahogany or Lagos mahogany, is a tall forest tree with a buttressed trunk in the family Meliaceae. It is found in Angola, Cameroon, Côte d'Ivoire, Gabon, Ghana, Liberia, and Nigeria where it grows primarily in lowland tropical rainforests. It is threatened by habitat loss.
Pterocarpus santalinoides is a tree species in the legume family (biology) (Fabaceae); it is locally known as mututi.
Swietenia macrophylla, commonly known as mahogany, Honduran mahogany, Honduras mahogany, big-leaf mahogany, or West Indian mahogany, is a species of plant in the Meliaceae family. It is one of three species that yields genuine mahogany timber (Swietenia), the others being Swietenia mahagoni and Swietenia humilis. It is native to South America, Mexico and Central America, but naturalized in the Philippines, Singapore, Malaysia and Hawaii, and cultivated in plantations and wind-breaks elsewhere.
Annona senegalensis, commonly known as African custard-apple, wild custard apple, wild soursop, sunkungo, and dorgot is a species of flowering plant in the custard apple family, Annonaceae. The specific epithet, senegalensis, translates to mean "of Senegal", the country where the type specimen was collected.
Entandrophragma caudatum, or mountain mahogany, is a large Southern African tree belonging to the mahogany family and found in eastern and north eastern South Africa, Swaziland, Botswana, Angola, the Caprivi Strip region of Namibia, Zimbabwe, Zambia and Malawi. Kew currently recognises 12 other species of Entandrophragma, all with a tropical and sub-tropical African distribution.
Strombosia pustulata is a species of tree in the family Olacaceae. It is native to the rainforests of tropical West and Central Africa. Common names for this tree include itako in Nigeria, afina in Ghana, poé in Abé spoken in Côte d'Ivoire and mba esogo in Equatorial Guinea.
Erythrina senegalensis, the Senegal coraltree, is a plant in the pea family Fabaceae, native to West Africa.
Sterculia setigera is a deciduous tree species within the Malvaceae family. It commonly occurs in the Sahelo-Sudan and Guinea savannah zones of Tropical Africa. Among the Hausa people it is known as Kukkuki. It is an important tree crop in Senegal as Gum karaya obtained from the woody species is exported from the country.
Wikimedia Commons has media related to Khaya senegalensis . |