page_title: Conyza
hierarchical_section_title: Conyza
caption_attribution_description: Conyza bonariensis (Horseweed) seed heads and flowers. Photographed by myself in December 2005. Fuji FinePix 2650 camera.
context_page_description: Conyza is a genus of flowering plants in the sunflower family.
  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.
  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
  Conyza abyssinica Sch.Bip. ex A.Rich.
  Conyza adenocarpa Dalzell & A.Gibson
  Conyza ageratoides DC.
  Conyza agnewii Mesfin
  Conyza agrostophylla F.G.Davies
  Conyza alluaudii Humbert
  Conyza amboinica Crantz
  Conyza andina J.Rémy
  Conyza andringitrana Humbert
  Conyza androrangensis Humbert
  Conyza angustifolia Roxb.
  Conyza arabidifolia Remy
  Conyza arenosa
  Conyza atrixioides Chiov.
  Conyza attenuata DC.
  Conyza attenuata Wall.
  Conyza auriculifera R.E.Fr.
  Conyza bakeri Humbert
  Conyza bampsiana Lisowski
  Conyza baumii Wild
context_section_description: Conyza (horseweed, butterweed or fleabane) is a genus of flowering plants in the sunflower family.
  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
  Conyza abyssinica Sch.Bip. ex A.Rich.
  Conyza adenocarpa Dalzell & A.Gibson
  Conyza ageratoides DC.
  Conyza agnewii Mesfin
  Conyza agrostophylla F.G.Davies
  Conyza alluaudii Humbert
  Conyza amboinica Crantz
  Conyza andina J.Rémy
  Conyza andringitrana Humbert
  Conyza androrangensis Humbert
  Conyza angustifolia Roxb.
  Conyza arabidifolia Remy
  Conyza arenosa	
  Conyza atrixioides Chiov.
  Conyza attenuata DC.
  Conyza attenuata Wall.
  Conyza auriculifera R.E.Fr.
  Conyza bakeri Humbert
  Conyza bampsiana (Lisowski) Lisowski
  Conyza baumii (O.Hoffm.) Wild
  Conyza blinii H.Lév.
  Conyza boelckei Cabrera
  Conyza boranensis (S.Moore) Cufod.
  Conyza burkartii Zardini
  Conyza burmeana Miq.
  Conyza bustillosiana J.Rémy
  Conyza canadensis (now Erigeron canadensis)
  Conyza capillipes S.Moore
  Conyza cardaminifolia Kunth
  Conyza catharinensis Cabrera
  Conyza chionea S.Díaz & A.Correa
  Conyza clarenceana (Hook.f.) Oliv. & Hiern
  Conyza collina Phil.
  Conyza copiapina Phil.
  Conyza cordata Kuntze
  Conyza coronopifolia Kunth
  Conyza dentonae McVaugh
  Conyza depilis Phil.
  Conyza deserticola Phil.
  Conyza edelbergii Rech.f.
  Conyza eucoma Miq.
  Conyza fastigiata Willd.
  Conyza feae (Bég.) Wild
  Conyza flabellata Mesfin
  Conyza foliosa Phil.
  Conyza fruticulosa O.Hoffm.
  Conyza gallianii Chiov.
  Conyza garnieri Klatt
  Conyza gayana Phil.
  Conyza gigantea O.Hoffm.
  Conyza glabrata Phil.
  Conyza glabrescens Pax
  Conyza glandulitecta Cabrera
  Conyza gonania	
  Conyza grahamii DC.
  Conyza hirtella DC.
  Conyza hochstetteri Sch.Bip. ex A.Rich.
  Conyza hypoleuca A.Rich.
  Conyza incana (Vahl) Willd.
  Conyza japonica (Thunb.) Less. ex Less.
  Conyza kahuzica Lisowski
  Conyza laevigata (Rich.) Pruski
  Conyza larrainiana J.Rémy
  Conyza lasseriana Aristeg.
  Conyza lateralis Phil.
  Conyza leucantha (D.Don) Ludlow & P.H.Raven
  Conyza lignescens Rusby
  Conyza limosa O.Hoffm.
  Conyza longipedunculata Klatt
  Conyza lorentzii Griseb.
  Conyza loueirii Poir.
  Conyza macrophylla Spreng.
  Conyza magnimontana Cabrera
  Conyza mandrarensis Humbert
  Conyza maxima Zoll. & Moritzi
  Conyza megensis F.G.Davies
  Conyza messeri Pic.Serm.
  Conyza microcephala Hemsl.
  Conyza mima S.F.Blake
  Conyza minutiflora Phil.
  Conyza mixta Fouc. & Neyr.
  Conyza modesta Kunth
  Conyza molleri Phil.
  Conyza monorchis (Griseb.) Cabrera
  Conyza montigena S.Moore
  Conyza muliensis Y.L.Chen
  Conyza myriocephala	
  Conyza nana Sch.Bip. ex Oliv. & Hiern
  Conyza neglecta R.E.Fr.
  Conyza nemoralis Phil.
  Conyza neocandolleana Humbert
  Conyza newii Oliv. & Hiern
  Conyza obscura DC.
  Conyza oligantha Cabrera
  Conyza pallidiflora R.E.Fr.
  Conyza pampeana (Parodi) Cabrera
  Conyza pannosa Webb
  Conyza pectinata (Sch.Bip.) Sch.Bip. ex Oliv. & Hiern
  Conyza pencana Phil.
  Conyza perennis Hand.-Mazz.
  Conyza perijaensis S.Díaz & A.Correa
  Conyza perrieri Humbert
  Conyza pinnata (L.f.) Kuntze
  Conyza pinnatifida (Thunb.) Less.
  Conyza podocephala DC.
  Conyza popayanensis (Hieron.) Pruski
  Conyza principis Gagnep.
  Conyza procumbens Balb.
  Conyza prolialba Cuatrec.
  Conyza pterocaulon Bolle
  Conyza pulsatilloides O.Hoffm.
  Conyza pusilla Houtt.
  Conyza pycnophylla Phil.
  Conyza pyrrhopappa Sch.Bip. ex A.Rich.
  Conyza ramosissima Cronquist
  Conyza reitziana Cabrera
  Conyza retirensis Cabrera
  Conyza ruderalis Phil.
  Conyza rufa Wall. ex DC.
  Conyza ruwenzoriensis (S.Moore) R.E.Fr.
  Conyza saltensis Cabrera
  Conyza sarmentosa Humbert
  Conyza scabrida DC.
  Conyza schimperi Sch.Bip. ex A.Rich.
  Conyza schlechtendalii Bol
caption: Conyza bonariensis seed heads and flowers
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