''Rinorea dentata'', commonly known as kuntze, is a species of

plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...

in the family

Violaceae Violaceae is a family of flowering plants established in 1802, consisting of about 1000 species in about 25 genera. It takes its name from the genus '' Viola'', the violets and pansies. Older classifications such as the Cronquist system plac ...

. It is found in the tropical rainforests of

Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...

Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...

Cameroon Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...

and

Uganda Uganda, officially the Republic of Uganda, is a landlocked country in East Africa. It is bordered to the east by Kenya, to the north by South Sudan, to the west by the Democratic Republic of the Congo, to the south-west by Rwanda, and to the ...

. It is particularly common in the Omo Forest Reserve in

Ogun State Ogun State is a state in southwestern Nigeria. It is bordered to the south by Lagos State and the Bight of Benin, to the east by Ondo State, and to the north by Oyo and Osun states while its western border forms part of the national borde ...

, Nigeria.

Description

''Rinorea dentata'' is a large shrub or small tree growing up to high. It is an understorey tree growing in dense, shady locations in forests. The trunk is very hard, earning the plant the name “Oloboroho” (stone plant) in the

Yoruba language Yoruba (, ; Yor. ) is a Niger–Congo languages, Niger-Congo language that is spoken in West Africa, primarily in South West (Nigeria), Southwestern and Middle Belt, Central Nigeria, Benin, and parts of Togo. It is spoken by the Yoruba people. ...

Uses

The wood of this plant is used as a chewing stick for oral hygiene, and extracts have been used for anti-microbial and anti-malaria purposes as a folk remedy in humans, and as a veterinary remedy for aiding parturition in livestock. Researchers found that the plant contained novel

cyclotide In biochemistry, cyclotides are small, disulfide-rich peptides isolated from plants. Typically containing 28-37 amino acids, they are characterized by their head-to-tail cyclised peptide backbone and the interlocking arrangement of their three ...

s, but further research is needed on the efficacy of these extracts.

References

dentata {{Violaceae-stub