- Scientific name
- Boletus fibrillosus
- Common names
- Fib King
- IUCN Specialist Group
- Mushroom, Bracket and Puffball
- Assessment status
- Assessment date
- IUCN Red List Category
- Siegel, N.
- Mueller, G.M.
is a common bolete in northern California and the Pacific Northwest (in both coastal and montane forests), and occasionally recorded in the Sierra Nevada and the northern Rocky Mountains. This species is edible and is often collected for food by foragers, but there is no reported evidence of decline and no significant threats have been identified. It is listed as Least Concern (LC).
It was described by Thiers (1975), based on a type collection made in Mendocino County, California, USA.
It occurs from southern British Columbia, Canada, throughout the forested parts of the Pacific Northwest; east into the northern Rocky Mountains; south to San Francisco, California, USA in coastal forests; and into the southern Sierra Nevada in the mountains.
Population and Trends
This species is common in conifer forests across much of its range. The population is widespread, and shows no sign of decline.
Population Trend: stable
Habitat and Ecology
It is ectomycorrhizal with conifers, in a wide variety of forest types. Fruiting occurs in fall.
No specific threats have been identified with regards to this species.
No specific conservation action are needed with regards to this species, and no specific research is needed either.
Use and Trade
This species is edible, and is often recreationally collected for food, although to a lesser extent than other Boletus
species (the Porcini). It does not appear to be subject to much demand in the commercial trade.
Source and Citation
Siegel, N. 2021. Boletus fibrillosus. The IUCN Red List of Threatened Species 2021: e.T195922930A195928087. https://dx.doi.org/10.2305/IUCN.UK.2021-2.RLTS.T195922930A195928087.en
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