Page author: Julie Jones
Boletus fibrillosus
WTU specimens
Other herbaria

Distribution: Widespread in the PNW

Habitat: Occurs in old-growth forests of fir and western hemlock as well as earlier succession forests of western hemlock and Douglas-fir and other mixed forest stands.

Conservation Status: Not of concern

Edibility: It is edible, but inferior to B. edulis.

Description:
Edibility:

It is edible, but inferior to B. edulis.

Identification Notes:

Boletus fibrillosus is a handsome bolete that often is mistaken for B. edulis. The cap color is some shade of dark brown, often with lighter areas, the cap surface is typically wrinkled and velvety to distinctly fibrillose, the tubes and pores are light yellow or somewhat darker, and the stipe is strongly reticulate, pale at the apex, dark brown below, and covered by white mycelium at the base. The overall aspect is that of a moderate to large cap on a relatively long stipe that often is pinched off at the base. It occurs locally, seldom as more than one or a few fruitbodies, but is widespread in our region in old-growth forests of fir and western hemlock as well as earlier succession forests of western hemlock and Douglas-fir and other mixed forest stands.

Accepted Name:
Boletus fibrillosus Thiers

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Boletus fibrillosus in the Consortium of Pacific Northwest Herbaria database.

CalPhotos: Boletus fibrillosus photos.

2 photographs:
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