Evernia prunastri (L.) Ach.

Evernia prunastri, also known as oak moss, is characterised by the dichotomously branching, yellow-green, sorediate thallus, and by white branch lower side. In the Czech Republic, it is an abundant epiphyte with a relatively wide ecological amplitude. It occurs from lowlands to mountains, growing on illuminated trunks and branches of mainly deciduous trees and shrubs (less often on conifers), and even on wood. Its range is extensive, covers large areas of Eurasia and North America, and extends into North Africa.

taxonomic classification:

Ascomycota Lecanoromycetes Lecanorales Parmeliaceae Evernia

Red List (Liška & Palice 2010):NT – near threatened

Occurrence in the Czech Republic

All records: 831, confirmed 659. One click on a selected square displays particular record(s), including their source(s).


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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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