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mountain tansymustard

Scientific Name: Descurainia incana ssp. incisa

Family: Brassicaceae

Category: Dicot

Growth: Forb/herb

Duration: Biennial

Other Names:

       

Descurainia incana - Mountain Tansymustard

Descurainia incana, commonly known as mountain tansymustard, is a plant belonging to the mustard family. This page provides information about its taxonomy, distribution, and other interesting details.

Considerations for Pets

  • This plant is an annual/biennial that can grow up to 1 meter (3ft 3in) tall.
  • Mentioned as growing in "weedy areas."

Scientific Classification

  • Scientific Name: Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn
  • Common Names: Mountain tansymustard, Mountain tansy mustard, Mountain tansy-mustard, Richardson's tansy mustard
  • Family: Brassicaceae (Mustard Family), formerly Cruciferae
  • Kingdom: Plantae
  • Synonyms: Descurainia richardsonii, Sophia incisa

Taxonomy and Nomenclature

  • The text mentions several subordinate taxa including subspecies and varieties of Descurainia incana, such as:
    • Descurainia incana subsp. incisa (Engelm. ex A. Gray) Kartesz & Gandhi
    • Descurainia incana var. incana
    • Descurainia incana var. viscosa

Distribution and Habitat

  • Native to northern and western North America.
  • In New England, it is found in northern Maine.
  • Prefers habitats like cliffs and talus slopes.
  • Also found in semi-desert to subalpine regions.
  • Often grows in disturbed areas and meadows.
  • Specific locations mentioned include Arizona, California, and Colorado.

Morphological Characteristics

  • Descurainia incana is an annual or biennial plant.
  • It can grow up to 1 meter (3 ft 3 in) in height.
  • It flowers from June to August, and the seeds ripen from August to September.
  • Displays "characteristic upright and close to the stalk seedpods".

Other Descurainia Species Mentioned

  • Descurainia incisa
  • Descurainia longipedicellata
  • Descurainia pinnata (Western Tansymustard)
  • Descurainia californica

Further Information

  • Discover Life provides a page about the biology, natural history, ecology, identification, and distribution of Descurainia incana.
  • U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station is mentioned.