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weakleaf burr ragweed

Scientific Name: Ambrosia confertiflora

Family: Asteraceae

Category: Dicot

Growth: Forb/herb

Duration: Perennial

Other Names:

       

Ambrosia confertiflora: Weakleaf Bur Ragweed

Ambrosia confertiflora is a species of ragweed recognized by several common names, most notably Weakleaf Bur Ragweed. This plant has potential implications for allergy sufferers.

Considerations for Pets

  • The plant produces burrs.

Considerations for Children

  • The plant produces burrs.

Taxonomy and Nomenclature

  • Scientific Name: Ambrosia confertiflora DC.
  • Family: Asteraceae (Aster Family)
  • Synonyms:
    • Franseria confertiflora
    • Franseria strigulosa
    • Gaertneria tenuifolia
    • Dc Rydb Franseria tenuifolia Harv &amp Gray
  • Rank: Species

Common Names

  • Weakleaf Bur Ragweed
  • Weakleaf Burr-Ragweed
  • Weak Leaved Burweed
  • Slimleaf Bursage
  • Slender Ragweed
  • Bur Ragweed
  • Canyon Ragweed
  • Chicura

Distribution and Habitat

  • Native to North America, specifically much of northern Mexico and the southwestern United States.
  • Observed in locations such as Orange County, California; Nevada; New Mexico; and Arizona.

Morphological Characteristics

  • Duration: Perennial.
  • Habit: Forb/herb (a non-woody plant that is not a grass).

Ecological Role

  • Implicated as a cause of hayfever during late summer and fall, particularly in Arizona.

Interactions with Other Organisms

  • Mentioned in the context of weeds and pesticide publications, suggesting potential interactions with pest management practices.
  • Observed alongside crab spiders.

Further Information

  • Lady Bird Johnson Wildflower Center
  • Discover Life
  • CalPhotos