Vernonia is a genus of about 350 species of forbs and shrubs in the family Asteraceae. Some species are known as ironweed. Some species are edible and of economic value. They are known for having intense purple flowers. There have been numerous distinct subgenera and subsections named in this genus, and some botanists have divided the genus into several distinct genera. For instance, the Flora of North America recognizes only about twenty species in Vernoniasensu stricto, seventeen of which are in North America north of Mexico, with the others being found in South America.
Eremothamnus is a monotypic genus of shrubs in the family Asteraceae. Its only species is Eremothamnus marlothianus. It is native to the coastal desert of Namibia. It is a small shrub with spiny leaves.
Wedelia is a genus of flowering plants in the family Asteraceae. They are one of the genera commonly called "creeping-oxeyes".
Karl August Otto Hoffmann was a German botanist and a high school teacher in Berlin. Author of Sertum plantarum madagascariensium, the genus Hoffmanniella in the family Asteraceae was named after him by Rudolf Schlechter. The plant genus of Hoffmannanthus (also in the family of Asteraceae was named after him in 2014.
Melanthera, is a genus of perennial flowering plants in the family Asteraceae, native to North and South America, as well as Africa, Asia and Oceania, including Hawaiʻi.
Camchaya is a genus of flowering plants in the family Asteraceae. They are native to Asia, including China, Laos, Thailand, Vietnam, and Cambodia.
Ichnocarpus frutescens is a species of flowering plant in the dogbane family Apocynaceae, known by the English common name black creeper. It is native to much of China, India, Southeast Asia, and northern Australia.
Cyanthillium cinereum is a species of perennial plants in the sunflower family. The species is native to tropical Africa and to tropical Asia and has become naturalized in Australia, Mesoamerica, tropical South America, the West Indies, and the US State of Florida.
Vernonanthura is a genus of Neotropical plants in the tribe Vernonieae within the family Asteraceae.
Acilepis is a genus of Asian plants in the tribe Vernonieae within the family Asteraceae.
Strobocalyx is a genus of Asian, African, Pacific Island, and South American plants in the tribe Vernonieae within the family Asteraceae. It is sometimes regarded as part of the genus Vernonia.
Monosis is a genus of Asian plants in the tribe Vernonieae within the family Asteraceae.
Decaneuropsis is a genus of plants in the tribe Vernonieae in the family Asteraceae. Species of the genus Decaneuropsis are found in Asia. Some authorities consider the group part of the genus Vernonia.
Oocephala is a genus of plants in the family Asteraceae, native to Africa. The name means "egghead", referring to the egg-shaped capitulum, which distinguishes the genus from its close relative Polydora. Some species were formerly placed in the genus Vernonia.
Acilepis ornata is a species of plant native to India. The species was first described by William Alexander Talbot in 1898 as Vernonia ornata.
Okia is a genus of flowering plants belonging to the family Asteraceae.
Hoffmannanthus is a monotypic genus of flowering plants in the Asteraceae. There is only one known species, Hoffmannanthus abbotianus(O.Hoffm.) H.Rob., S.C.Keeley & Skvarla Its native range is Uganda and southern Tropical Africa. It is found in the countries of Angola, Kenya, Tanzania, Uganda, Zambia and Zaïre.
Jeffreycia is a genus of African flowering plants in the family Asteraceae. They are in the tribe Vernonieae.
