Baikiaea is a genus of trees in the legume family Fabaceae (order Fabales), comprising six accepted species native to sub-Saharan Africa. The genus ranges from Nigeria eastward through Central Africa to Uganda and Tanzania, and south through Angola to Namibia, Botswana, Zimbabwe, and Zambia. Species occupy a variety of habitats, from lowland tropical rainforest to seasonally dry forest and open woodland or savanna on well-drained sandy soils.
The most ecologically prominent member is Baikiaea plurijuga, known as Rhodesian teak or Zambezi teak, which dominates two recognized dry woodland ecoregions — the Kalahari Acacia-Baikiaea woodlands and the Zambezian Baikiaea woodlands. In these regions it frequently forms near-monodominant stands on the deep Kalahari sands of the Zambezi Basin, spanning parts of Angola, Namibia, Botswana, Zambia, and Zimbabwe. Baikiaea insignis is the other widely distributed species, extending from Nigeria across Central Africa to Uganda, Tanzania, and Angola.
The genus was described by George Bentham and is named in honor of William Balfour Baikie (1825–1864), a Scottish naval surgeon and explorer best known for his expeditions along the Niger River in West Africa.
Etymology
The genus name Baikiaea honors William Balfour Baikie (1825–1864), a Scottish naval surgeon and explorer who led several expeditions up the Niger River in West Africa during the 1850s and 1860s.
Distribution
Baikiaea species are native to sub-Saharan Africa, with a range extending from Nigeria eastward to Uganda and Tanzania and southward to Zimbabwe, Botswana, and Namibia. Habitats span lowland tropical rainforest, seasonally dry forest, and savanna or woodland on well-drained soils, with B. plurijuga concentrated on the Kalahari sands of the Zambezi Basin.
Ecology
Baikiaea plurijuga is the defining tree species of the Kalahari Acacia-Baikiaea woodlands and Zambezian Baikiaea woodlands ecoregions, where it can form near-monodominant stands. These woodlands occupy deep, nutrient-poor Kalahari sands and experience a pronounced dry season, making B. plurijuga an important structural species for the fauna and flora dependent on these habitats.
