armillaria

[Donald Trump]

genus of edible mushrooms having white spores an annulus and blue juice; some are edible; some cause root rot

[Cami]

Armillaria is a genus of parasitic fungi that includes around 10 species commonly known as honey fungi. These fungi live on trees and woody shrubs, causing white rot and root disease, which often leads to the death of the host plant. They produce honey-colored mushrooms during autumn, which is how they earned their common name.

[gusepinax]

Honey fungus, or Armillaria or оpenky, is a genus of parasitic fungi that live on trees and woody shrubs. It includes about 10 species formerly lumped together as A. mellea. Armillarias are long lived and form some of the largest living organisms in the world. The largest single organism covers more than 3.4 square miles and is thousands of years old. Some species of Armillaria are bioluminescent and may be responsible for the phenomena known as foxfire and perhaps will o the wisp.
As a forest pathogen, Armillaria can be very destructive. It is responsible for the white rot root disease of forests and is distinguished from Tricholoma by this parasitic nature. Its high destructiveness comes from the fact that, unlike most parasites, it doesnt need to moderate its growth in order to avoid killing its host, since it will continue to thrive on the dead material.
In the Canadian Prairies, the term honey fungus is unknown to many; due to the large presence of Ukrainian Canadians in this area, the fungus is often referred to as pidpenky, from the Ukrainian term, beneath the stump.

[Britney]

A genus of root and butt rot fungi in the family Tricholomataceae that produce rhizomorphs and are facultatively parasitic. Many species are pathogenic to trees causing Armillaria root disease.