Physconia grisea is well-recognizable thanks to its simple unbranched rhizines. It mainly grows on deciduous tree bark, more rarely also on rocks. It is tolerant to eutrophication and higher dustiness and generally prefers nutrient-enriched places. It is widely distributed and abundant in Europe, with thermophilic preferences, so it is common mainly in the southern part. In the Czech Republic, P. grisea is scattered to abundant from lower to middle elevations.taxonomic classification:
All records: 133, confirmed 91. One click on a selected square displays particular record(s), including their source(s).