Armillaria Ostoyae Discovered in Oregon’s Malheur National Forest

on September 28, 2003

Covering 2,200 acres, (the equivalent of 1,665 football fields) the Armillaria ostoyae, or honey mushroom, fungus discovered in eastern Oregon’s Malheur National Forest in 1999 is reported to be the world’s largest living organism. This single fungus is visible as honey-colored mushrooms in the fall, but lives up to 3 feet below the ground, and is at least 2,400 years old.

Found in: Trivia