The species grows on various siliceous substrates, sometimes even enriched with metallic compounds. It occurs on well-lit rocks and stones, from hills to mountains. It is abundant in northern Europe. In the Czech Republic, the data are limited. It is probably overlooked because of its minute sterile thalli growing intermixed with other lichens.
In its wider taxonomic concept, it is very variable regarding the vegetative propagules (smooth transitions between soredia and isidia) and thallus character. Here, we consider synonymous the commonly distinguished sorediate species Aspicilia grisea Arnold. S. simoënsis requires detailed taxonomic revision and might include more taxa.taxonomic classification: most frequented synonyms:Aspicilia simoensis, Aspicilia grisea
All records: 40, confirmed 28. One click on a selected square displays particular record(s), including their source(s).