This 2,400 Year Old Mushroom Is The Largest Living Organism On The Planet

Armillaria root disease can cause undesired growth loss and tree mortality. On the Eastside and in southwestern Oregon, armillaria root disease may create large openings where highly susceptible species die before attaining large size. Ground fire severity may increase as a result of the abundant down wood in infection areas. Trees killed by armillaria root disease may pose safety hazards because they are predisposed to tree failure. The fruiting bodies of armillaria ostoyae / via National Geographic