This may be the most common species
east of Rocky Mountains. Grows from the ground singly or in clusters. Typically
shorter than other Armillaria species. Sometimes the rhizomorphs spread onto dead hardwood logs to fruit.
Cap is tan to pinkish-brown and is
covered in dark ‘hairs’. The base of the stipe is often enlarged. When bruised
it occasionally stains yellow.
Its white partial
veil resembles a cortina,
a spider-like web of mycelia that is most common among the Cortinarius. Remnants can be found on the cap edge and on the
stipe. White rhizomorphs (“Shaped like roots”) at