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Top 5 largest organisms by extent

evergreen

The 5 largest organisms by extent: Armillaria ostoyae 'humongous fungus' (Oregon), Posidonia oceanica seagrass clone, Pando aspen colony, and more.

Snapshot · 2026-09-23

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  1. 1

    Armillaria ostoyae 'humongous fungus' (Oregon)

    ~9.6 km2

  2. 2

    Posidonia oceanica seagrass clone

    up to ~15 km2

  3. 3

    Pando aspen colony

    ~0.43 km2, ~6,000 t

  4. 4

    General Sherman (Giant Sequoia)

    ~1,910 t, ~1,487 m3 trunk

  5. 5

    Blue Whale

    ~150 t