Fib King

Boletus fibrillosus Thiers

Safety first

Many edible mushrooms have toxic lookalikes, and some of those can be fatal. Have any mushroom identified in person by a local expert before you eat it.

If someone may have eaten a wild mushroom, call US Poison Control at 1-800-222-1222 or 911 right away. In Canada, call your provincial poison centre or 911.

Edibility

Edible (per source) Source: Wikipedia: Boletus fibrillosus

Classification from Wikipedia: Boletus fibrillosus. Sources can be wrong or incomplete, and people react differently.

Never eat a wild mushroom based on this site or any app.

Lookalikes

No lookalikes are recorded for this species yet. That does not mean there are none. Many mushrooms look alike, so never rely on appearance alone.

Season

When this species has been recorded, by month, from open-licensed US and Canada observations. It shows when people report it, not a guarantee it is fruiting.

The highlighted bar is the current month.

View season data as a table

Recorded observations of Fib King by month
Month	Records
January	1
February	0
March	0
April	1
May	1
June	1
July	5
August	12
September	29
October	66
November	35
December	10

Where it is found

States and provinces with the most records. Check the foraging rules for the place you plan to visit.

California 70 records · Foraging rules
Washington 31 records · Foraging rules
Oregon 23 records · Foraging rules
Idaho 16 records · Foraging rules
British Columbia 15 records · Foraging rules

All state and province foraging laws

Identification traits

Cap shape	convex
Underside (gills, pores or teeth)	pores
Ecology	mycorrhizal
Stem features	bare
Spore print color	olive-brown

Traits vary. Use them to ask better questions of an expert, not to make a final call.

About

Boletus fibrillosus, commonly known as the fib king, is a basidiomycete fungus of the genus Boletus. The holotype was collected in Mendocino County, California. Phylogenetic analysis has shown it to be a member of a clade (closely related group) with B. pinophilus, B. regineus, B. rex-veris, B. subcaerulescens, and Gastroboletus subalpinus. The cap is up to 17 centimetres (6+1⁄2 in) wide and buff to brown to dark brown, with a wrinkled to finely fibrous texture. The tubes are yellow, while the flesh is white to buff and does not stain when cut. The stem is up to 16 cm long, yellowish at the top, brown otherwise, with a reticulate texture, and mycelium enshrouding the bottom. The species has only been found in western North America. The fruiting bodies are found in mixed coastal forests in the fall, usually singly or in small groups. It is edible, but considered to have inferior taste to other edible boletes such as B. edulis, which it is often confused with.

From Wikipedia, CC BY-SA 4.0. Read the original article.

Recent finds

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More in the genus Boletus

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