Conyza canadensis (L.) Cronquist

First published in Bull. Torrey Bot. Club 70: 632 (1943)
This name is a synonym of Erigeron canadensis

POWO follows these authorities in synonymising this name:

  • GCC in GCC (2011). Global Compositae Checklist. Global Compositae Checklist [Cited as Erigeron canadensis.]
  • Ghafoor, A. & al. (2021). Flora of Pakistan 224: 1-310. Department of Botany, University of Karachi, Karachi. [Cited as Erigeron canadensis.]
  • Wu, Z. & Raven, P.H. (eds.) (2011). Asteraceae. Flora of China 20-21: 1-992. Science Press (Beijing) & Missouri Botanical Garden Press (St. Louis). [Cited as Erigeron canadensis.]

This name was accepted following an alternative taxonomy by these authorities:

  • Flora of North America Editorial Committee (2006). Asteraceae. Flora of Australia 20: 1-666. Australian Government Publishing Service, Canberra. [Cited as Conyza canadensis.]
  • Kharkevich, S.S. (ed.) (1992). Plantae Vasculares Orientalis Extremi Sovietici 6: 1-428. Nauka, Leningrad. [Cited as Conyza canadensis.]

Catálogo de Plantas y Líquenes de Colombia

  • Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá.

Other Data

Other Kew resources that provide information on this taxon:


  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at and
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants.