Puccinia lagenophorae

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    Description

    Puccinia lagenophorae is a bright orange rust fungus which forms on the stems and leaves of Common Groundsel (Senecio vulgaris) causing swelling. It may also be found on Oxford Ragwort (Senecio squalidus). The orange patches bear the aecia, which appear as cup like structures. In the autumn dark telia may sometimes appear amongst the orange aecia.

    Identification difficulty
    Habitat

    On Common Groundsel (Senecio vulgaris) and also found on Oxford Ragwort (Senecio squalidus).

    When to see it

    Usually observed in spring and summer.

    UK Status

    Originally of Australian origin, and only known in the UK since 1961. It is now widespread and fairly frequent in Britain.

    VC55 Status

    Believed to be fairly frequent in Leicestershire and Rutland.

    • Graham Calow
      Sapcote
      24 March 2014
      on Common Groundsel (Senecio vulgaris)
    • Graham Calow
      Sapcote
      24 March 2014
      on Common Groundsel (Senecio vulgaris)
    • Graham Calow
      Sapcote
      24 March 2014
      on Common Groundsel (Senecio vulgaris)
    • Graham Calow
      Sapcote
      24 March 2014
      on Common Groundsel (Senecio vulgaris)
    • Mike Higgott
      Anstey garden
      29 May 2016
      on Common Groundsel (Senecio vulgaris)

    Leicestershire & Rutland Map

    UK Map

    • Mike Higgott
      Anstey garden
      29 May 2016
      on Common Groundsel (Senecio vulgaris)
    • martindgrimes
      Clipsham Park Wood
      28 April 2016