Guibourtia ehie is native to tropical west Africa and grows in Cameroon, Gabon, Ghana, Ivory Coast, Liberia, and Nigeria. It grows in closed rain forests and transitional forests, often in small groups. It is threatened by habitat loss.
It grows to 30–45 m tall, with a trunk 60–90 cm diameter, heavily buttressed at the base, with smooth bark. The leaves are alternate, 5–10 cm long, divided into two leaflets with acuminate apices. The flowers are white, with four sepals and no petals. The fruit is a pod 4–6 cm long and 2.5–3.5 cm broad.
It is used as a tropical hardwood for cabinetry, carving, flooring, joinery, musical instruments, and turnery. The wood is heavy, with a density of 0.85 g/cm³. It is durable, and resistant to wood-boring insects.
It is sometimes used in guitar manufacturing, in the back and sides of acoustic guitar bodies. It is also used as a riser on the "stick" longbow manufactured by Martin Archery. It is a less expensive substitute for Indian rosewood, and is used by well-known guitar and bass manufacturers such as Takamine, Yamaha, Taylor, Esteve, Turner, Warwick, Framus, Warmoth, Alhambra, Ibanez and Yairi.
- Contu, S. (2012). "Guibourtia ehie". The IUCN Red List of Threatened Species. IUCN. 2012: e.T33053A20077023. doi:10.2305/IUCN.UK.2012.RLTS.T33053A20077023.en. Retrieved 10 November 2017.
- International Legume Database & Information Service: Guibourtia ehie
- "Guibourtia ehie". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 16 January 2018.
- African Regional Workshop (Conservation & Sustainable Management of Trees, Zimbabwe) 1998. Guibourtia ehie. 2006 IUCN Red List of Threatened Species. Downloaded on 10 July 2007.
- https://www.wood-database.com/ovankol/ Ovankol - The Wood Database
- Virtual Field Herbarium: Guibourtia ehie
- CIRAD Forestry Department: Ovengkol (pdf file)
- Ghana Forestry Commission: Hyedua
- LTD., BubbleUp,. "product-details". Takamine Guitars. Retrieved 2018-08-15.
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