Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Asteraceae / Compositae ⟩ Jacobaea erucifolia / hoary ragwort

Jacobaea erucifolia (L.) P. Gaertn., B. Mey. & Scherb.

hoary ragwort (Asteraceae / Compositae)

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

Synonym | Senecio erucifolius L.

Jacobaea erucifolia is very similar to Jacobaea vulgaris and is found in similar habitats, but only in England, Wales and near Dublin in Ireland.

Oxford (VC23: Oxfordshire); 2014-06-17

 hoary ragwort / Jacobaea erucifolia: _Jacobaea erucifolia_ is very similar to _Jacobaea vulgaris_ and is found in similar habitats, but only in England, Wales and near Dublin in Ireland.

Jacobaea erucifolia is densely hairy when young (seen here with a young Senecio vulgaris for scale), but the hairs are soon lost as the plant grows.

Barrington (VC33: East Gloucestershire); 2022-04-19

 hoary ragwort / Jacobaea erucifolia: _Jacobaea erucifolia_ is densely hairy when young (seen here with a young _Senecio vulgaris_ for scale), but the hairs are soon lost as the plant grows.

The lower row of phyllaries (involucral bracts) are at least half as long as the upper row in Senecio erucifolius, unlike in Senecio jacobaea.

Oxford (VC23: Oxfordshire); 2014-06-17

 hoary ragwort / Jacobaea erucifolia: The lower row of phyllaries (involucral bracts) are at least half as long as the upper row in _Senecio erucifolius_, unlike in _Senecio jacobaea_.

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