Helminthotheca is a genus in the Cichorieae tribe of the sunflower family. Helminthotheca is closely related to the genus Picris, both within the Hypochaeridinae subtribe.
Helianthus nuttallii, or Nuttall's sunflower, is a species of sunflower native to northern, central, and western North America, from Newfoundland west to British Columbia, south to Missouri, New Mexico, and California.
Prenanthes is a genus of plant in the family Asteraceae, often referred to as rattlesnake root.
Petrobium is a genus in the family Asteraceae.
Grewia turbinata is a species of flowering plant in the family Malvaceae sensu lato or Tiliaceae or Sparrmanniaceae. It is found only in Yemen. Its natural habitat is subtropical or tropical dry forests.
Distephanus is a genus of flowering plants in the family Asteraceae. It is described by American botanist Harold E. Robinson as having over 40 species and by David Mabberley as having only 34 species. These sources differ sharply in their description of the range of the genus. Robinson has it ranging throughout Africa and occurring also in India and China. Mabberley has it restricted to southeast Africa, Madagascar, and Mauritius.
Guevaria is a genus of South American flowering plants in the family Asteraceae.
Kingianthus paniculatus is a species of flowering plant in the family Asteraceae. It is found only in Ecuador. Its natural habitats are subtropical or tropical moist montane forests and subtropical or tropical high-altitude shrubland. It is threatened by habitat loss.
Kleinia scottii is a species of flowering plant in the family Asteraceae. It is found only in Yemen. Its natural habitat is subtropical or tropical dry forests.
Pulicaria aromatica is a species of flowering plant in the family Asteraceae. It is found only in Yemen. Its natural habitats are subtropical or tropical dry forests and rocky areas.
Hypericum scopulorum is a species of flowering plant in the family Hypericaceae. It is endemic to Socotra, an island archipelago that is part of Yemen. It is a common plant in shrubland habitat, and it is a dominant species in some areas along with Cephalocroton and another local endemic, Helichrysum rosulatum.
Boswellia socotrana is a species of plant in the Burseraceae family. It is endemic to Socotra, Yemen. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.
Meineckia filipes is a species of plant in the family Phyllanthaceae. It is endemic to the Socotra Islands in the Indian Ocean, part of the Republic of Yemen. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.
Oldenlandia pulvinata is a species of plant in the family Rubiaceae. It is endemic to Yemen. Its natural habitat is rocky areas.
The Cichorieae are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the Eastern Hemisphere. Cichorieae all have milky latex and flowerheads that only contain one type of floret. The genera Gundelia and Warionia only have disk florets, while all other genera only have ligulate florets. The genera that contain most species are Taraxacum with about 1,600 apomictic species, Hieracium with about 770 sexually reproducing and 5,200 apomictic species, and Pilosella with 110 sexually reproducing and 700 apomictic species. Well-known members include lettuce, chicory, dandelion, and salsify.
Soroseris is a genus of Asian plants in the tribe Cichorieae within the family Asteraceae.
Iphionopsis is a genus of African flowering plants in the daisy family.
Notoseris is a genus of Asian flowering plants in the dandelion tribe within the sunflower family. The plants are native to Asia, primarily China.
Plocama tinctoria is a species of flowering plant in the family Rubiaceae. It is endemic to northern Somalia and the Socotra archipelago of Yemen. Its natural habitat is subtropical or tropical dry forests. It is listed by the IUCN as a threatened species under the basionym Gaillonia tinctoria.
Erythroseris is a genus of African plants in the tribe Cichorieae within the family Asteraceae.
