by Stephen Mifsud
   24 Jun 2024      ()
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Erigeron bonariensis   (Flax-Leaved Fleabane)

Erigeron bonariensis  (ASTERACEAE.) 
Images for this profile are taken from the Maltese Islands after year 2000.

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General Information Species Images
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Detailed species profile
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Profile Date Aug-2003 (taxon update: Aug-2003)
Citation for this page Mifsud, S. (2022). Erigeron bonariensis - datasheet created on Aug-2003. Retrieved from on 24-Jun-2024

Nomenclature and Basic Information

Species name :

Erigeron bonariensisL.
Published in Enum. Hort. Berol. Alt. 2: 323. (1822)

Synonyms :
(basionym or principal syn.)

Leptilon bonariense Small
Synonym that was used for long in Malta: Conyza bonariensis (L.) Cronquist
Full list of synonyms : [Euro+Med] [PlantList] [IPNI] [POWO] [Catalogue of Life] []

Plant Family :

Asteraceae Bercht. & J.Presl (=Compositae) (The Daisy or Sunflower Family)
123 species from the Asteraceae family are recorded from the Maltese Islands.

English name(s) :

Flax-Leaved Fleabane, Hairy Fleabane, Asthmaweed

Maltese name(s) :

Żagħżigħa selvaġġa

Status for Malta :

Naturalised Alien. Species that was introduced in Malta after year 1492 (Columbus' discovery of the New World) and spreads and integrates to form established, non-invasive populations. Species may become become invasive if it widespreads rapidly.

Frequency :

Very Common     Common    Frequent    Scarce     Rare    Very rare    Extinct

Growth form :

Raunkiaer lifeform [info]: THEROPHYTE ( annual plants, herbaceous )
Germination [info]: Dicotyledon

Legal Protection :

Not legally protected till the last update of this website (2/Mar/2022)

Red List (1989) :

Not listed in the Red Data Book of the Maltese Islands

Flowering Time :

April – November

Colour of Flowers:

Green or Inconspicuous


Not particularly toxic

Name Derivation :

bonariensis: originating from Buenos Aires in Argentina. (Latin origin )

Planting in rural areas :

Can be planted in rural areas according to ERA Guidelines

Description, Habitat and Distribution
Habitat in Europe: Cultivated ground and waste places.
Preferred habitat in Malta: Mostly in urban and semi-rural areas such as roadsides, cracks in the pavement, curbs of flagstones, parks and old gardens, waste ground, dumping sites, stone piles, rubble walls, abandoned fields, farms and field margins
Botanical Description: Annual, 30-250 cm long, densely hairy. Leaves numerous, narrow, the lower up to 10 x 1 cm, oblanceolate, petiolate, often deciduous, the others linear, at least the upper sessile. Inflorescence sometimes with elongate branches overtopping the main axis; capitula often 1 cm or more wide; involucre 4-6 mm, hirsute throughout, rarely glabrous or nearly so (var. leiotheca (Blake) Cuatrec.); female florets 50-120 or more; ligules up to 0.5 mm, shorter than the style and usually also than the pappus.
Chromosome number: 2n=36, 54
Distributional range: Naturalized in the Mediterranean region and S. W. Europe.
Native region outside Europe: (Tropical America.)

Distributional map in Europe
and the Mediterranean region (2018):
Occurrences in Europe.
(from Flora Europaea pre year 1993):
Introduced in Albania, the Azores, the Balaeric Islands, Corse, Crete, France (incl. Monaco and Channel Islands but excluding Corse), Greece, Spain (incl. Andorra but excl. the Balaerics), Italy (excl. Sicily and Sardignia), ex-Jugoslavia, Portugal, Sardinia, Sicily and/or Malta, Turkey (European part)
Occurrences in Europe and the Mediterranean region.
(from Euro+Med Checklist, 2019)
  Country codes  
[Ab(A) nAE(G) nAg nAl Az(C F G J L M P S T) Be(B) Bl nBl(I M N) nBr nBu Ca(C F G H L P T) Cg nCo nCr aCs nCt nCy Eg Ga(C) nGa(F) nGe Gg nGr He nHo nHs(G S) nIJ nIr nIt Jo nJu nLe Li nLS nLu nMa nMd(M P) Mk aPo Rf(CS) nSa Si(M) nSi(S) Sl Sn aSu nSy Tn nTu(A E)]

Links & Further literature (0 papers)

Google Web

Google Images

Google Scholar

Research Gate




Med Checklist

Cat. of Life



World Flora Online

Plants of the World Online

Vienna Virt. Herb.

RBGE Herbarium

KEW Herbarium




Kindly Email if there are papers and publications about local studies or information about this species to be included in the list above.

Species Images (39 images)
   Erigeron bonariensis   -   Image Code: EGRBO-0.
   Erigeron bonariensis   -   Image Code: EGRBO-1.
   Erigeron bonariensis   -   Image Code: EGRBO-2.
   Erigeron bonariensis   -   Image Code: EGRBO-3.
   Erigeron bonariensis   -   Image Code: EGRBO-4.
   Erigeron bonariensis   -   Image Code: EGRBO-5.
   Erigeron bonariensis   -   Image Code: EGRBO-6.
   Erigeron bonariensis   -   Image Code: EGRBO-7.
   Erigeron bonariensis   -   Image Code: EGRBO-8.
   Erigeron bonariensis   -   Image Code: EGRBO-9.
   Erigeron bonariensis   -   Image Code: EGRBO-10.
   Erigeron bonariensis   -   Image Code: EGRBO-11.
   Erigeron bonariensis   -   Image Code: EGRBO-12.
   Erigeron bonariensis   -   Image Code: EGRBO-13.
   Erigeron bonariensis   -   Image Code: EGRBO-14.
   Erigeron bonariensis   -   Image Code: EGRBO-15.
   Erigeron bonariensis   -   Image Code: EGRBO-16.
   Erigeron bonariensis   -   Image Code: EGRBO-17.
   Erigeron bonariensis   -   Image Code: EGRBO-18.
   Erigeron bonariensis   -   Image Code: EGRBO-19.
   Erigeron bonariensis   -   Image Code: EGRBO-20.
   Erigeron bonariensis   -   Image Code: EGRBO-21.
   Erigeron bonariensis   -   Image Code: EGRBO-22.
   Erigeron bonariensis   -   Image Code: EGRBO-23.
   Erigeron bonariensis   -   Image Code: EGRBO-24.
   Erigeron bonariensis   -   Image Code: EGRBO-25.
   Erigeron bonariensis   -   Image Code: EGRBO-26.
   Erigeron bonariensis   -   Image Code: EGRBO-27.
   Erigeron bonariensis   -   Image Code: EGRBO-28.
   Erigeron bonariensis   -   Image Code: EGRBO-29.
   Erigeron bonariensis   -   Image Code: EGRBO-30.
   Erigeron bonariensis   -   Image Code: EGRBO-31.
   Erigeron bonariensis   -   Image Code: EGRBO-32.
   Erigeron bonariensis   -   Image Code: EGRBO-33.
   Erigeron bonariensis   -   Image Code: EGRBO-34.
   Erigeron bonariensis   -   Image Code: EGRBO-35.
   Erigeron bonariensis   -   Image Code: EGRBO-36.
   Erigeron bonariensis   -   Image Code: EGRBO-37.
   Erigeron bonariensis   -   Image Code: EGRBO-38.

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Section B:   Where have you seen this plant on the Maltese Islands?
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