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American bugseed

Scientific Name: Corispermum americanum var. rydbergii

Family: Chenopodiaceae

Category: Dicot

Growth: Forb/herb

Duration: Annual

Other Names:

       

American Bugseed (Corispermum americanum)

American Bugseed, scientifically known as Corispermum americanum, is an annual plant native to North America. It is also referred to simply as Bugseed.

Taxonomy and Nomenclature

  • Scientific Name: Corispermum americanum (Nutt.) Nutt.
  • Family: Chenopodiaceae (now considered part of Amaranthaceae)
  • Rank: Species
  • Synonyms/Varieties:
    • Corispermum americanum var. americanum
    • Corispermum americanum var. rydbergii Mosyakin
    • Corispermum hyssopifolium (mentioned as "Other Names")

Distribution and Habitat

  • Native to North America.
  • Found in Canada (three additional species mentioned).
  • Observed in Wisconsin on Lakes Michigan.
  • Locally common in areas with some disturbance, such as sandy areas.

Morphological Characteristics

  • Summer annual plant.
  • Grows to approximately 6-20 inches (20 to 50 cm) tall.
  • Ascending or erect growth habit.
  • Branched stem, either occasionally or frequently.
  • Stem is smooth to slightly grooved, covered in star-shaped structures (possibly hairs or scales).
  • Flat, thin leaves.
  • Inflorescences of flowers with long bracts.
  • Grows from a slender taproot.

Ecological Role

  • Tolerant of disturbance and may even prefer such areas.
  • Drought-resistant.

Further Information

  • Flora of North America (Missouri Botanical Garden, St. Louis, MO).
  • USDA PLANTS Database (Symbol: COAMR).
  • EDDMapS Distribution maps.
  • Discover Life website.