Source-reviewed species profile
Oyster mushroom Pleurotus ostreatus
Fan-shaped grey cap, decurrent gills and lateral attachment. This profile covers broad field features, season and habitat for learning.
Learning content – not identification
Images, text and app suggestions cannot confirm a species or food safety.
Field features
- Fan-shaped grey cap, decurrent gills and lateral attachment.
Habitat and search guidance
Dead or weakened deciduous wood, often beech, aspen or birch.
Season
Autumn and winter, locally also during cool spring periods.
Safety status
Included with a food status in the Norwegian 2026 Norm List. This learning profile never confirms a finding or that it is safe to eat. Use qualified local expertise.
Sources and review status
Last reviewed: 25 August 2026.