What do ground fires mainly burn?

Buried roots and duff.

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  1. Tree canopies
  2. Buried roots and duff ✔
  3. Tall grasses

Why: Ground fires smolder in roots, duff, and buried organic matter.

Huh, didn't know that: Ground fires smolder in roots, duff, and buried organic matter.

The dad joke
Ground fires keep a low profile!
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References

Answer: Buried roots and duff. Ground fires smolder in roots, duff, and buried organic matter.

  1. Wildfire en.wikipedia.org/wiki/Wildfire
    Ground fires are fed by subterranean roots, duff on the forest floor
    Checked 2026-11-07.

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