Centaurea is a genus of over 700 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. In the western United States, yellow starthistles are an invasive species. Around the year 1850, seeds from the plant had arrived to the state of California. It is believed that those seeds came from South America.
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit.
The Mascarene Islands or Mascarenes or Mascarenhas Archipelago is a group of islands in the Indian Ocean east of Madagascar consisting of the islands belonging to the Republic of Mauritius as well as the French department of Réunion. Their name derives from the Portuguese navigator Pedro Mascarenhas, who first visited them in April 1512. The islands share a common geologic origin in the volcanism of the Réunion hotspot beneath the Mascarene Plateau and form a distinct ecoregion with a unique flora and fauna.
Elaioplasts are one of the three possible forms of leucoplasts, sometimes broadly referred to as such. The main function of elaioplasts are synthesis and storage of fatty acids, terpenes, and other lipids, and they can be found in the embryonic leaves of oilseeds, citrus fruits, as well as the anthers of many flowering plants.
Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the germination, growth, survival, and reproduction of other organisms. These biochemicals are known as allelochemicals and can have beneficial or detrimental effects on the target organisms and the community. Allelopathy is often used narrowly to describe chemically-mediated competition between plants, however, it is sometimes defined more broadly as chemically-mediated competition between any type of organisms. Allelochemicals are a subset of secondary metabolites, which are not directly required for metabolism of the allelopathic organism.
The Gnaphalieae are a tribe of flowering plants in the family Asteraceae. It is most closely related to the tribes Anthemideae, Astereae, and Calenduleae.
A tumbleweed is a kind of plant habit or structure.
Dendrosenecio meruensis is one of the East African giant groundsel, this one is endemic to the slopes of Mount Meru. Once they were considered to be of the genus Senecio but since then have been reclassified into their own genus Dendrosenecio.
Dendrosenecio johnstonii, formerly Senecio johnstonii, is a species of giant groundsel found in the middle altitudes of Mount Kilimanjaro in Africa. A recent botanical reclassification split off some species formerly in Senecio, putting the giant groundsels in the new genus Dendrosenecio. It also redefined the former species Senecio cottonii, as a subspecies of Dendrosenecio johnstonii. Both genera are in the family Asteraceae. The giant grounsels of the genus Dendrosenecio evolved, about a million years ago, from a Senecio that established itself on Mount Kilimanjaro, with those that survived adapting into Dendrosenecio kilimanjari. As it moved down the mountain, the adaptations necessary for the new environment created the new species, Dendrosenecio johnstonii. Various subspecies are found on other mountains.
William Martin is an American botanist and microbiologist, currently Head of the Institut für Molekulare Evolution, Heinrich Heine Universität, Düsseldorf.
Zygaena lonicerae, the narrow-bordered five-spot burnet, is a moth of the family Zygaenidae. The species was first described by Theodor Gottlieb von Scheven in 1777.
Jordanita chloros is a moth of the family Zygaenidae.
Urophora quadrifasciata is a species of tephritid or fruit flies in the genus Urophora of the family Tephritidae. The host plant for the larvae is usually a knapweed, and because of this, it is used to control Centaurea stoebe.
Cochylimorpha perfusana is a species of moth of the family Tortricidae. It is found in France, Austria, Switzerland, Italy, Slovenia, Croatia, Hungary and Romania, as well as on Corsica.
Centaurea stoebe, the spotted knapweed or panicled knapweed, is a species of Centaurea native to eastern Europe. It is also an invasive species in southern Canada, and northwestern Mexico, and nearly every state in the United States; it has thrived in the western United States in particular, much of which has a dry climate similar to the Mediterranean. This species and Centaurea diffusa are tumbleweeds — plants that break free of their roots and tumble in the wind, facilitating the dispersal of their seeds.
Protea recondita, also known as the hidden sugarbush, is a flowering plant of the genus Protea within the family Proteaceae, which is endemic to the Cape Region of South Africa, and distributed from the Piketberg and Cederberg to the Groot Winterhoek mountains. The flowers of this unusual plant are pollinated by non-flying mammals: rodents and elephant shrews. In the Afrikaans language it is known as gesigtoehouprotea or skaamroos.
Erica galioides is a species of flowering plant (angiosperms) in the heather family (Ericaceae). It is endemic to the island of Réunion in the Indian Ocean.
Anthophora bimaculata is a species of bees.
Tetraloniella dentata is a species of bees within the genus Tetraloniella.
