Limits RegistryPUBLIC RECORD
Limits RegistryPando, a colony of quaking aspen (Populus tremuloides) in Utah, USA, covers approximately 43 hectares (106 acres) with an estimated 47,000 genetically identical stems, all connected by a single root system — the largest known clonal plant. It is also among the oldest, with root-system age estimates ranging from 9,000 to 80,000 years depending on methodology. It is not, however, the largest organism overall by area — a fungus in Oregon covers over 20 times more ground.
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Pando, a colony of quaking aspen (Populus tremuloides) in Utah, USA, covers approximately 43 hectares (106 acres) with an estimated 47,000 genetically identical stems, all connected by a single root system — the largest known clonal plant. It is also among the oldest, with root-system age estimates ranging from 9,000 to 80,000 years depending on methodology. It is not, however, the largest organism overall by area — a fungus in Oregon covers over 20 times more ground.
The greatest area covered by any plant organism confirmed to be one genetic individual, as established by genetic sampling. Scoped to plants specifically — a fungus, Armillaria ostoyae, covers a larger area and is tracked as its own separate record, since it belongs to an entirely different kingdom of life.
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Permanent ID limitsregistry.com/limits/LR-PANDO-LARGEST-ORGANISM
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Limits Registry. LR-PANDO-LARGEST-ORGANISM. Largest known clonal plant organism. 2026.