Oleaceae, also known as the olive family, is a taxonomic family of flowering shrubs, trees, and a few lianas in the order Lamiales, It presently comprises 28 genera, one of which is recently extinct. The extant genera include Cartrema, which was resurrected in 2012. The number of species in the Oleaceae is variously estimated in a wide range around 700. The flowers are often numerous and highly odoriferous. The family has a subcosmopolitan distribution, ranging from the subarctic to the southernmost parts of Africa, Australia, and South America. Notable members include olive, ash, jasmine, and several popular ornamental plants including privet, forsythia, fringetrees, and lilac.
Gentianaceae is a family of flowering plants of 103 genera and about 1600 species.
Centaurium (centaury) is a genus of 20 species in the gentian family (Gentianaceae), tribe Chironieae, subtribe Chironiinae. The genus was named after the centaur Chiron, famed in Greek mythology for his skill in medicinal herbs. It is distributed across Europe and into Asia.
Zeltnera beyrichii, commonly known as mountain pink, quinine weed or rock centaury, is an annual that blooms from late spring to early fall. Used as a medicinal plant by pioneers, the flowers were dried and used to reduce fevers.
Schenkia sebaeoides, known as ʻĀwiwi in Hawaiian and lavaslope centaury in English, is a rare species of flowering plant. It is endemic to low shrublands in the state of Hawaiʻi in the United States. It is present on the islands of Kauai, Oahu, Lanai, Molokai, and Maui. At the time it was added to the endangered species list of the United States in 1991 it was known from seven populations for a total of fewer than 1000 individuals. It is threatened by habitat loss.
Zeltnera venusta is a species of flowering plant in the gentian family known by the common names California centaury, charming centaury and canchalagua. This centaury is native to much of California, southern Oregon, and northwest Baja California.
Chenopodium baccatum, commonly known as berry saltbush, is a species of shrub endemic to Western Australia.
Chenopodium benthamii is a species of shrub endemic to midwest Western Australia.
Zeltnera muehlenbergii is a species of annual herb commonly known as Monterey centaury and Muhlenberg's centaury. It is native to western North America from British Columbia to California and Nevada, where it commonly grows in forests and other moist places. This is an annual herb growing thin, erect, branching stems to heights anywhere between 10 centimeters and one meter. Oval-shaped leaves are arranged oppositely on the stem and are up to 2 or 3 centimeters long. The branching inflorescence bears many flowers, each with small bracts at its base. The flower has five oval-shaped petallike lobes each a few millimeters long.
Schenkia spicata is a species of annual herb in the family Gentianaceae. It has a very wide old world distribution, ranging from north Africa, through Europe and into Asia.
Schenkia australis is a species of annual herb in the Gentianaceae family. It is endemic to Australia.
Sebaea is a genus of annual plants in the family Gentianaceae. Species occur in Africa, Madagascar, India, China, Thailand, Australia and New Zealand. The genus was paraphyletic and has been split in four genera: Exochaenium, Klackenbergia, Lagenias and Sebaeas.str.. Synapomorphies for Sebaea s.str. include the presence of extra stigma along the style and the shape of the testa cells of the seeds.
Chenopodium parabolicum, commonly known as fragrant saltbush or mealy saltbush, is a shrub in the family Amaranthaceae. The species is native to Australia.
The genus Exochaenium is endemic to sub-Saharan Africa, with species occurring in most tropical and sub-tropical regions of the continent, particularly on the Katanga plateau, with many extending to the Sudano-Zambesian and Guineo-Congolian regions. The genus is monophyletic and is used to study the variation and evolution of herkogamy.
The monotypic genus Lagenias is endemic to the Cape Province of South Africa . It belongs to the tribe Exaceae of the Gentianaceae.
Klackenbergia is a genus of flowering plants belonging to the gentian family (Gentianaceae) and the tribe Exaceae. It only contains two species, both endemic to Madagascar. They are notable for their inflorescence with characteristic long bracts and bracteoles and sub-sessile flowers arranged in axillary fascicules at each node.
Diplostigmaty refers, in botany, to the presence of extra stigmas along the style. This condition is known from the genus Sebaea. It is thought to provide reproductive assurance.
Tachiadenus is a plant genus in the gentian family (Gentianaceae), tribe Exaceae. It contains 11 species.
Ornichia is a plant genus in the gentian family, (Gentianaceae), tribe Exaceae.
Gyrandra is a genus of flowering plants in the family Gentianaceae, found in Texas, Mexico and Central America. Annual herbs, they are usually found in montane pine-oak forests.
