Puccinia cnici-oleracei
Puccinia cnici-oleracei is a rust fungus that affects the leaves of Marsh Thistle (Cirsium palustre) in VC55, and on Melancholy Thistle (Cirsium heterophyllum) in other areas. There is no host alternation, and only the dark-brown telia are found, on slightly thickened yellowish spots.
Also occurs on other plants in the Asteraceae (e.g. Yarrow, Ox-eye Daisy) but is probably not a gall-causer of these species (ref. Redfern & Shirley 2023). Some authors consider the rust on Achillea to be a distinct species, Puccinia millefolii.
Wherever the host plants occur.
When the host species are in leaf.
Widespread and fairly frequent in Britain.
Status in Leicestershire and Rutland not known.
Peter Smith
Mountsorrel, Cufflins Pit Lane
29 November 2024
Rust on Yarrow
Peter Smith
Mountsorrel, Cufflins Pit Lane
29 November 2024
Rust on Yarrow
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Species profile
- Species group:
- Fungi
- Kingdom:
- Fungi
- Order:
- Pucciniales
- Family:
- Pucciniaceae
- Records on NatureSpot:
- 7
- First record:
- 07/07/2016 (Grimes, Martin)
- Last record:
- 29/11/2024 (Smith, Peter)
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