''Coincya'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of flowering plant that belongs to the family

Brassicaceae Brassicaceae () or (the older) Cruciferae () is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, while some are shrubs. The le ...

. Three species of the plant are

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

British Isles The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, ...

, these being ''

Coincya wrightii ''Coincya wrightii'', known as Lundy cabbage, is a species of primitive brassicoid, endemic to the island of Lundy off the southwestern coast of England, where it is sufficiently isolated to have formed its own species, with its endemic insec ...

'' (Lundy cabbage), '' Coincya cheiranthos'' (nokkasinapit) and '' Coincya monensis'', which has two subspecies, ''C. monensis'' subsp. ''monensis'' (Isle of Man cabbage) and ''C. monensis'' subsp. ''recurvata'' (star mustard). Another four species are endangered and endemic to the south-central

Iberian peninsula The Iberian Peninsula (), ** * Aragonese and Occitan: ''Peninsula Iberica'' ** ** * french: Péninsule Ibérique * mwl, Península Eibérica * eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defi ...

. The name derives from the French botanist Auguste-Henri de Coincy. The star mustard, a plant introduced to eight U.S. states is the same species as the Isle of Man cabbage but a different

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

. It may have been introduced to the U.S. as the Isle of Man cabbage and subsequently evolved through the

founder effect In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. It was first fully outlined by Ernst Mayr in 1942, using ...

and geographic isolation into a new subspecies.

Species

* '' Coincya cheiranthos'' * ''

Coincya cintrana ''Coincya cintrana'' is a flowering plant of the family Brassicaceae. It is a hemicryptophyte plant, and it grows on walls, in steep areas and in rocky slopes. It flowers from April until June. The species authority is (Cout.) P.Silva, and was ...

'' * '' Coincya johnstonii'' * '' Coincya monensis'' ** ''C. monensis'' subsp. ''monensis'' (Isle of Man cabbage) ** ''C. monensis'' subsp. ''recurvata'' (Star mustard) * '' Coincya richeri'' * ''

References

{{Taxonbar, from=Q159809 Brassicaceae genera