Pictorial guide to the flora of the British Isles

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Erigeron canadensis L.

Canadian fleabane (Asteraceae / Compositae)

 SpreadBias within British IslesDirection of bias
Very widespreadStrong tendencySE
Plant Atlas 2020
BSBI Distribution Map

Synonym | Conyza canadensis (L.) Cronquist

Erigeron canadensis is a North American plant of waste ground that is now widespread in lowland parts of England and Wales, and rarer in Scotland and Ireland.

Greenfield (VC23: Oxfordshire); 2012-01-28

 Canadian fleabane / Erigeron canadensis: _Erigeron canadensis_ is a North American plant of waste ground that is now widespread in lowland parts of England and Wales, and rarer in Scotland and Ireland.

The individual flowers of Erigeron canadensis have 4 corolla lobes, in contrast to the 5-lobed Erigeron floribundus.

Oxford (VC23: Oxfordshire); 2014-07-08

 Canadian fleabane / Erigeron canadensis: The individual flowers of _Erigeron canadensis_ have 4 corolla lobes, in contrast to the 5-lobed _Erigeron floribundus_.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne