Conyza bonariensis
| Erigeron bonariensis |
 |
|
Mount Carmel, Israel
|
| Scientific classification |
| Kingdom: |
Plantae |
| (unranked): |
Angiosperms |
| (unranked): |
Eudicots |
| (unranked): |
Asterids |
| Order: |
Asterales |
| Family: |
Asteraceae |
| Tribe: |
Astereae |
| Genus: |
Erigeron |
| Species: |
E. bonariensis |
| Binomial name |
Erigeron bonariensis
L.
|
| Synonyms |
Synonymy
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Erigeron bonariense L.
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Conyza bonariensis (L.) Cronquist
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Leptilon bonariense (L.) Small
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Marsea bonariensis (L.) V.M. Badillo
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Aster ambiguus (DC.) E.H.L.Krause
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Conyza ambigua DC.
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Conyza chenopodioides DC.
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Conyza crispa] (Pourret) Rupr.
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Conyza crispa (Pourr.) Cout.
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Conyza gracilis Hoffmanns. & Link
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Conyza hispida Kunth
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Conyza ivifolia Burm.f. 1768
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Conyza ivifolia (L.) Less. 1831
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Conyza leucodasys Miq.
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Conyza linearis DC.
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Conyza linifolia (Willd.) Täckh. 1956 not L. 1753
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Conyza plebeja Phil.
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Conyza rufescens Hoffmanns. & Link
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Conyza sinuata Elliott
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Conyza sordescens Cabrera
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Conyzella linifolia (Willd.) Greene
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Dimorphanthes ambigua C.Presl
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Dimorphanthes angustifolia Cass.
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Dimorphanthes crispa Rupr.
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Dimorphanthes hispida (Kunth) Cass.
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Dimorphanthes linifolia (Willd.) Rupr.
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Erigeron ambiguus (DC.) Sch.Bip. 1845 not Nutt. 1818
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Erigeron canadensis Ten. 1831 not L. 1753
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Erigeron contortus Desf. ex Pers1
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Erigeron coranopifolius Willk. & Lange
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Erigeron crispus Pourr.
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Erigeron gusalakensis Rech.f. & Edelb.
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Erigeron linearifolius Cav
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Erigeron linifolius Willd.
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Erigeron looseri Herter
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Erigeron naudinii (Bonnet) Bonnier
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Erigeron sordidus Gillies ex Hook. & Arn.
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Erigeron transsilvanicus Schur
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Erigeron undulatus Moench
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Eschenbachia ambigua Moris
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Eupatorium dictyophyllum DC.
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Leptilon linifolium (Willd.) Small
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Pulicaria gracilis (Hoffmanns. & Link) Nyman
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Pulicaria rufescens (Hoffmanns. & Link) Nyman
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Erigeron bonariensis is a species of Erigeron, found throughout the tropics and subtropics as a pioneer plant; its precise native origin is unknown, but most likely Central America or South America. It has become naturalized in many other regions. Common names include flax-leaf fleabane, wavy-leaf fleabane, Argentine fleabane, and hairy fleabane.
Erigeron bonariensis is a rare alien in south eastern England, found beneath walls and in cracks in pavements and concrete driveways. It flowers in August and continues fruiting until the first frosts (sometimes as late as Christmas Day in Berkshire). It is instantly recognisable by its blue-green foliage, very narrow, undulate leaves, and purple-tipped involucral bracts.
Erigeron bonariensis grows up to 75 cm (29.5 in) in height and its leaves are covered with stiff hairs, including long hairs near the apex of the bracts. Its flower heads have white ray florets and yellow disc florets. It can easily be confused with Conyza canadensis, which grows taller, and C. albida.
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Wikipedia
