''Descurainia'' is a genus of plants in 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 ...

which are known commonly as the tansymustards. The genus name commemorates French botanist and herbalist

François Descurain François () is a French masculine given name and surname, equivalent to the English name Francis. People with the given name * Francis I of France, King of France (), known as "the Father and Restorer of Letters" * Francis II of France, King o ...

(1658–1749). The plants are similar in appearance to other mustards, sending up long erect stems and bearing small yellow or whitish flowers. Many species are

noxious weed A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is injurious to agricultural or horticultural crops, natural habitats or ecosystems, or humans or liv ...

s. Some species are toxic to livestock and become a nuisance when they grow in grazing fields. Plants of this genus are found worldwide in temperate regions. ''

Descurainia sophia ''Descurainia sophia'' is a member of the family Brassicaceae. Common names include flixweed, herb-Sophia and tansy mustard. It reproduces by seeds. It is a dominant weed in dark brown prairie and black prairie soils of southern Alberta. Its s ...

'', (flixweed or herb sophia), is the type species of ''Descurainia''. Selected species: *''

Descurainia antarctica ''Descurainia'' is a genus of plants in the family Brassicaceae which are known commonly as the tansymustards. The genus name commemorates French botanist and herbalist François Descurain (1658–1749). The plants are similar in appearance to ot ...

'' - Tierra del Fuego tansymustard *''

Descurainia bourgaeana ''Descurainia bourgaeana'' (hierba pajonera or flixweed) is a species of flowering plant in the family Brassicaceae Brassicaceae () or (the older) Cruciferae () is a medium-sized and economically important family of flowering plants commonly k ...

'' *''

Descurainia californica ''Descurainia californica'' is a species of flowering plant in the family Brassicaceae known by the common name Sierra tansymustard. This plant is native to western North America from California to Wyoming. It is a resident of varied habitats fro ...

'' - Sierra tansymustard *''

Descurainia incana ''Descurainia incana'' is a species of flowering plant in the mustard family known by the common name mountain tansymustard. It is native to much of North America, including most of Canada, the western United States, and Baja California. It is kn ...

'' - mountain tansymustard *''

Descurainia obtusa ''Descurainia'' is a genus of plants in the family Brassicaceae which are known commonly as the tansymustards. The genus name commemorates French botanist and herbalist François Descurain (1658–1749). The plants are similar in appearance to o ...

'' - blunt tansymustard *''

Descurainia paradisa ''Descurainia paradisa'' is a plant species native to eastern and northern California, southeastern Oregon, Box Elder County in northwestern Utah, and most of Nevada Nevada ( ; ) is a U.S. state, state in the Western United States, Western ...

'' - paradise tansymustard *''

Descurainia pinnata ''Descurainia pinnata'' is a species of flowering plant in the family Brassicaceae known by the common name western tansymustard. It is native to North America, where it is widespread and found in varied habitats. It is especially successful in d ...

'' - western tansymustard *''

Descurainia ramosissima ''Descurainia'' is a genus of plants in the family Brassicaceae which are known commonly as the tansymustards. The genus name commemorates French botanist and herbalist François Descurain (1658–1749). The plants are similar in appearance to o ...

'' - Villa Grove tansymustard *''

'' - flixweed, herb-Sophia or tansy *''

Descurainia sophioides ''Descurainia'' is a genus of plants in the family Brassicaceae which are known commonly as the tansymustards. The genus name commemorates French botanist and herbalist François Descurain (1658–1749). The plants are similar in appearance to o ...

'' - northern tansymustard *''

Descurainia torulosa ''Descurainia torulosa'' is a species of flowering plant in the family Brassicaceae known by the common names Wyoming tansymustard and Wind River tansymustard. It is endemic to Wyoming in the United States, where it is found in the Absaroka Range ...

'' - Wind River tansymustard

References

External links

Jepson Manual Treatment
Brassicaceae genera {{Brassicales-stub