Conyza

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Genus of plants in the family Asteraceae

title: "Conyza" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["astereae", "asteraceae-genera", "ruderal-species"] description: "Genus of plants in the family Asteraceae" topic_path: "general/astereae" source: "https://en.wikipedia.org/wiki/Conyza" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of plants in the family Asteraceae ::

|image = Conyza podocephala 1DS-II 4-2778.jpg |image_caption = Conyza podocephala |display_parents = 3 |taxon = Conyza |authority = Less., 1832, conserved name not L. 1753 (syn of Inula) nor Hill 1756 (syn of Pulicaria) nor Lam. 1756 (syn of Psiadia in Rubiaceae) |synonyms_ref= |synonyms=

  • Erigeron sect. Caenotus Nutt.
  • Conyzella Fabr.
  • Marsea Adans.
  • Erigeron sect. Conyza (L.) Baillon
  • Leptilon Raf.
  • Conyzella Fabric.
  • Conyza sect. Caenotus (Nutt.) Cronquist ex Cuatrec.
  • Edemias Raf.
  • Caenotus (Nutt.) Raf.

Conyza (horseweed, butterweed or fleabane) is a genus of flowering plants in the family Asteraceae.

They are native to tropical and warm temperate regions throughout the world, and also north into cool temperate regions in North America and eastern Asia. The New World species of the genus are closely related to Erigeron (also known as fleabanes).

The species are annual or perennial herbaceous plants, rarely shrubs, growing to 1–2 m tall. The stems are erect, branched, with alternate leaves. The flowers are produced in inflorescences, with several inflorescences loosely clustered on each stem.

Many species of the genus Conyza are ruderal species and some have been found to be resistant to the herbicide glyphosate.

; Species

References

References

  1. [http://www.tropicos.org/NameSearch.aspx?name=Conyza&commonname= Tropicos search for Conyza]
  2. [http://www.tropicos.org/Name/100404567 Tropicos ''Conyza argentea'' Lam.]
  3. link. (2014-11-15)
  4. [https://www.biodiversitylibrary.org/page/35247286#page/219/mode/1up Lessing, Christian Friedrich. 1832. Synopsis Generum Compositarum 203–204] in Latin
  5. [http://www.tropicos.org/Name/40013671 Tropicos, ''Conyza'' Less.]
  6. Cronquist, A. 1943. The separation of ''Erigeron'' from ''Conyza''. Bull. Torrey Bot. Club 70: 629–632. 1943.
  7. Nesom, G. L. 1990c. Further definition of ''Conyza'' (Asteraceae: Astereae). Phytologia 68: 229–233.
  8. [http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=107911 Flora of North America, Horseweed, ''Conyza'' Lessing]
  9. Zelaya, I. A.. (2007). "Transfer of glyphosate resistance: evidence of hybridization in Conyza (Asteraceae)". American Journal of Botany.
  10. "Eschenbachia blinii (H.Lév.) Brouillet {{!}} Plants of the World Online {{!}} Kew Science".

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astereaeasteraceae-generaruderal-species