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Health & Science6h 51m ago
Beneath the Blue Mountains of eastern Oregon, in the Malheur National Forest, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly ten square kilometres.
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Blue Mountains, Malheur National Forest, eastern Oregon, United States
Who
Greg Whipple, Forest Service worker; Ferguson, Dreisbach, Parks, Filip and Schmitt, Forest Service team
What
Beneath the Blue Mountains of eastern Oregon, in the Malheur National Forest, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly ten square kilometres.
When
Sun, 14 Jun 2026 03:16:01 GMT · 6h 51m ago
Where
Blue Mountains, Malheur National Forest, eastern Oregon, United States ·
Why
The fungus, Armillaria ostoyae, is a root pathogen that spreads by growing mycelium and rhizomorphs through soil and wood, attacking the roots and lower trunks of trees.
The Frontline Impact
How this affects you
This single organism, potentially one of the largest and oldest living things on Earth, continues to spread underground, killing trees as it grows, raising questions about what defines a single organism and its long-term ecological impact on the forest ecosystem.
Story chain
10 events in this thread- Health & Science6h 51m agoBeneath the Blue Mountains of eastern Oregon, in the Malheur National Forest, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly ten square kilometres.Open article
- Health & Science6h 51m agoA single honey fungus, Armillaria ostoyae, in Oregon's Malheur National Forest has been spreading through the roots of the forest for thousands of years and now covers nearly 10 square kilometers.Open article
- Health & Science6h 51m agoA single honey fungus, Armillaria ostoyae, in the Malheur National Forest has been spreading through the roots of the forest for thousands of years and now covers nearly ten square kilometres.Open article
- Health & Science6h 51m agoA single honey fungus, Armillaria ostoyae, has been spreading through the roots of the forest in the Malheur National Forest, eastern Oregon, for thousands of years, now covering nearly ten square kilometres.Open article
- Health & Science6h 51m agoBeneath the Blue Mountains of eastern Oregon, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly 10 square kilometres.Open article
- Health & Science6h 51m agoBeneath the Blue Mountains of eastern Oregon, in the Malheur National Forest, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly ten square kilometres.Open article
- Health & Science6h 51m agoBeneath the Blue Mountains of eastern Oregon, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly 10 square kilometres.Open article
- Health & Science6h 51m agoA single honey fungus, Armillaria ostoyae, in the Malheur National Forest, has been spreading for thousands of years and now covers nearly 10 square kilometres.Open article
- Health & Science6h 51m agoA single honey fungus, Armillaria ostoyae, covering nearly ten square kilometres, has been spreading through the roots of the forest in Oregon’s Blue Mountains for thousands of years.Open article
- Currently Reading6h 51m agoBeneath the Blue Mountains of eastern Oregon, in the Malheur National Forest, a single honey fungus has been spreading through the roots of the forest for thousands of years, now covering nearly ten square kilometres.