The rust fungus Puccinia glechomatis galls the leaves of Ground-ivy affecting the stem, petiole or underside of the leaf veins. The areas become swollen, yellow, brown or black bearing telia, each up to 1 mm across, usually in groups up to 4 mm across.
Where the host plants occur.
When the host species are in leaf, but especially around September.
Widespread and fairly frequent 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