''Oldfieldia'' is a

plant Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

under the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Picrodendraceae Picrodendraceae is a family of flowering plants, consisting of 80 species in 24 genera.Stephens, P.F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008. http://www.mobot.org/MOBOT/Research/APweb/ These are subtropical to tropical ...

, the only member of its

subtribe Subtribe is a taxonomic category ranking which is below the rank of tribe and above genus. The standard suffix for a subtribe is -ina (in animals) or -inae (in plants Plants are predominantly photosynthetic eukaryotes of the kingdom Plant ...

(Paiveusinae). It was described as a genus in 1850. Oldfieldia is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

.Kew World Checklist of Selected Plant Families
/ref> ;Species Oldfieldia is after Richard Albert Kearns Oldfield (R.A.K Oldfield) the British plant collector in Nigeria and Sierra Leone and surgeon on the 1832-1834 Niger River expedition with Laird and Lauder # ''

Oldfieldia africana Oldfieldia africana, also known as the African oak, is a large tree which can grow to 36 metres or more in height. It is to be found across West Africa in such countries as Ivory Coast, Liberia, Sierra Leone, Gabon, Cameroon, Central African Repu ...

'' Benth. & Hook.f. - Ivory Coast, Liberia, Sierra Leone, Gabon, Cameroon, Central African Republic, Congo Republic # ''

Oldfieldia dactylophylla ''Oldfieldia'' is a plant genus under the family Picrodendraceae, the only member of its subtribe (Paiveusinae). It was described as a genus in 1850. Oldfieldia is endemic to Africa. ;Species Oldfieldia is after Richard Albert Kearns Oldfield ...

'' (Welw. ex Oliv.) J.Léonard - Zaïre, Tanzania, Zambia, Angola # ''

Oldfieldia macrocarpa ''Oldfieldia'' is a plant genus under the family Picrodendraceae, the only member of its subtribe (Paiveusinae). It was described as a genus in 1850. Oldfieldia is endemic to Africa. ;Species Oldfieldia is after Richard Albert Kearns Oldfield ...

'' J.Léonard - Zaïre # '' Oldfieldia somalensis'' (Chiov.) Milne-Redh - Somali, Kenya, Tanzania, Mozambique

References

Picrodendraceae Flora of Africa Malpighiales genera {{Malpighiales-stub