Marsh Ragwort - Senecio aquaticus

    Description

    Stems often branched in the lower part. Basal leaves often unlobed. Flowerheads yellow, 25 to 30 mm, with 12 to 15 rays and borne in loose flat topped clusters. Bracts not black tipped.

    Similar Species

    Common Ragwort (Senecio jacobaea (= syn. Jacobaea vulgaris).  Oxford Ragwort and Hoary Ragwort are also similar, but grow in different habitats

    Identification difficulty
    ID guidance

    Looser habit and corymbs than Common Ragwort; terminal lobe of leaves much larger than lateral lobes.  Bracts are not black-tipped

    Recording advice

    Photograph of the plant in habitat, showing leaves as well as flowers.  It is not possible to verify the species form photos of the flowers alone

    Habitat

    Ditches, water margins, damp and marshy places.

    When to see it

    July and August.

    Life History

    Biennial.

    UK Status

    Widespread and frequent in Britain.

    VC55 Status

    Fairly frequent in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 124 of the 617 tetrads.

    Leicestershire & Rutland Map

    UK Map