Turnera is a genus of flowering plants in the passionflower family, Passifloraceae. It contains more than 100 species native to tropical and subtropical America. The name honours English naturalist William Turner (1508–1568). It was previously placed in the family Turneraceae.
Turnera subulata is a species of flowering plant in the passionflower family known by the common names white buttercup, sulphur alder, politician's flower, dark-eyed turnera, and white alder. Despite its names, it is not related to the buttercups or the alders. It is native to Central and South America, from Panama south to Brazil. It is well known in many other places as an introduced species, such as Malaysia, Indonesia, several other Pacific Islands, the Caribbean, and Florida in the United States.
Adenoa is a monotypic genus of flowering plants belonging to Turneroideae (Passifloraceae).
Afroqueta is a genus of flowering plants belonging to Turneroideae (Passifloraceae). It is a monotypic group, consisting of Afroqueta capensis(Harv.) Thulin & Razafim.
Piriqueta is a genus of flowering plants belonging to Turneroideae (Passifloraceae).
Hyalocalyx is a monotypic genus of flowering plants belonging to the family Passifloraceae. The only species is Hyalocalyx setifer.
Mathurina is a monotypic genus of flowering plants belonging to the family Passifloraceae. The only species is Mathurina penduliflora.
Loewia glutinosa is a species of shrub from East Kenya belonging to the family Passifloraceae., Ethopia, and Somalia.
Oxossia is a genus of flowering plants in the subfamily Turneroideae (Passifloraceae) consisting of 15 species. This genus was recently defined in 2019 after a phylogenetic analysis of Turnera justified the creation of the genus. The genus is characterized by its stipules, small flowers, congested inflorescences, "hairy" stamen and style, and the attachment of stamen to the floral tube. All members of the genus are heterostylous with the exception of O. dasystyla. The genus can be divided into two morphological groups: those with white petals and those with yellow pink or red petals.
Loewia tanaensis is a subshrub with yellow/orange flowers. It is native to the dry tropics of Kenya. It is believed to be distylous.
Stapfiella lucida is a shrub native to Burundi, Congo, Rwana, and Zaïre. It reaches heights of 1.5 – 3 meters high, shiny 4–5 cm leaves that cluster at the top of branches, yellowish white homostylous flowers, and chestnut colored seeds.
Stapfiella usambarica is a shrub native to the Usambara mountains of Tanzania, Africa. It can be found at altitudes of 1900 - 2230 m. As of 2012, the conservation status of S. usambarica has not been evaluated.
Tricliceras elatum is a distylous herb native to northern Mozambique, Africa. As of 2020, T. elatum has been classified as endangered.
Oxossia dasystyla is a shrub native to southeast Brazil. It is native to the jungles and surrounding fields of Minas Gerais; specifically the Caatinga and Atlantic Forest.
Oxossia hatschbachii is a species of shrub in the genus Oxossia (Passifloraceae). It is native to the Atlantic Rainforest near Espírito Santo, Brazil. O. hatchbachii has heterostylous racemose flowers, ranging in color from white to red.
Oxossia marmorata is a shrub in the genus Oxossia (Passifloraceae). It is native to the Atlantic Rainforest of Brazil. It can be distinguished from other members of the genus by its yellow flowers. Similar to other members of Oxossia, O. marmorata has distylous flowers.
Oxossia princeps is a subshrub in the genus Oxossia (Passifloraceae). It is native to the savanna of Minas Gerais, Brazil. It is considered "rare", but its conservation classification is currently unknown.
Oxossia rubrobracteata is a shrub in the genus Oxossia (Passifloraceae). It is native to the Atlantic Rainforest of Brazil.
Oxossia spicata is a shrub in the genus Oxossia (Passifloraceae). It is native to the Atlantic Rainforest of Espírito Santo, Brazil. The species is known from three different populations, however, additional field work is needed to determine the conservation status of O. spicata.
Oxossia waltherioides is a subshrub in the genus Oxossia (Passifloraceae). It is native to the Amazon Rainforest of Roraima, Brazil.
