Assessment Notes

Justification

Imleria badia is a common and widespread, edible, ectomycorrhizal fungus in Europe and northeastern North America. There is no evidence of decline. It can be locally abundant where suitable habitat exists. Therefore, it is assessed as Least Concern (LC).

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Taxonomic notes

The taxon in North America may consist of several taxa.

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Geographic range

Imleria badia is very common to the temperate to hemiboreal parts of Europe, common in the southern boreal areas of Europe and also in eastern North America. The area of occupancy (AOO) of this species is much larger than 2,000 km², and its extent of occurrence (EOO) is much larger than 20,000 km².

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Population and Trends

The population size is likely to be very large since this is such a widespread species, and more or less stable as there is no indication of any decline.

Population Trend: Stable

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Habitat and Ecology

Imleria badia is a common ectomycorrhizal mushroom in coniferous and mixed woodland, more rarely on deciduous forests. It occurs mostly on acid soil. It forms mycorrhiza with conifers (particularly with Pinus spp., but also with Picea spp., and Tsuga spp.) occasionally with beech, oak and chestnut trees (Fagus spp., Quercus spp. and Castanea spp.) and other deciduous broadleaved trees.

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Threats

There are no major threats to this species.

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Conservation Actions

No conservation measures are needed for this species since it is widespread and there are no major threats to it.

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Use and Trade

Imleria badia is a highly appreciated edible mushroom.

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Source and Citation

Dahlberg, A. 2019. Imleria badia (errata version published in 2022). The IUCN Red List of Threatened Species 2019: e.T138329440A222969127. Accessed on 21 November 2025.

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• Country occurrence