Conyza canadensis

Photo Courtesy of K. Hubeny

Common Name(s) Horseweed
Scientific Name Conyza canadensis
Family Asteraceae
Location/Vegetative Zone Thicket
Flowering Period June-September
Identifying Characteristics Thin and hair with yellow florets


  • 1-7′ tall,
  • Leaves alternate around stem
  • Flowers less than 1/8th inch across
  • No floral scent noticeable
  • Tufts of light brown or white hair
  • Prefers full sun, grows typically anywhere

Medicinal Uses

  • Europeans and Native Americans used as a remedy for dysentary
  • Oil
    • Mixed with cinnamon oil to stop bleeding in the digestive tract
  • Flowering Tops
    • Used in a tea for fevers, cough and sore throat.

Cultural Uses

  • Can be dried and used as an herb similar to Tarragon
  • Essential Oil
    • Used in the creation of candy, condiments, etc.


“Horseweed, Mare’s Tail”. Eat the Weeds. Green Deane, LLC. 2007. Web.


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