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Health & Science6h 54m 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
Who
Armillaria ostoyae (honey fungus), Greg Whipple, Ferguson, Dreisbach, Parks, Filip and Schmitt
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 54m ago
Where
Blue Mountains, Malheur National Forest, eastern Oregon ·
Why
The fungus 'Armillaria ostoyae' is a root pathogen that advances by spreading its mycelium and rhizomorphs from one tree root to the next, killing trees as it goes.
The Frontline Impact
How this affects you
This massive fungus, one of the largest single organisms on Earth by area, continues to spread through forest root systems, killing trees and impacting the local ecosystem in the Malheur National Forest.
Story chain
10 events in this thread- Health & Science6h 54m 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 54m 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 54m 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 54m 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 54m 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
- Currently Reading6h 54m 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.
- Health & Science6h 54m 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 54m 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 54m 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
- Health & Science6h 54m 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