Varying in colour from greenish grey to orange-yellow, with ascending to adpressed lobes, subdivided into few or many short, irregular, finger-like sub-lobes less than 1 mm in width. Xanthoria polycarpa can appear similar to X. parietina but is much smaller.
Widespread on nutrient-enriched trees, especially on small twigs where it forms clusters.
All year round.
Used as an indicator of nitrogen deposition.
Widespread and common in Britain.
Common in Leicestershire and Rutland.
Leicestershire & Rutland Map
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Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015