The fungus Puccinia phragmitis affects Rumex species causing reddish purple blotches with grey cup shaped clusters. Later stages occur on Phragmites; the uredinia rupture the upper and lower surfaces of leaves causing dark brown patches often surrounded by an area of yellowing of the leaf.
Where the host plants occur.
When the host plants are in leaf.
First stages on Rumex species, later stages on Phragmites.
Widespread in Britain.
Status in Leicestershire and Rutland not known.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015