Guinness World Records - Officially Amazing

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For the record

  • Who: Azolla japonica

  • What: Largest area covered by floating ferns

  • Where: Japan

The largest recorded area of water entirely covered by the same fern, red Azolla japonica, measured 9,685 m² (104,284 ft ²), when measured in January-June 2000. The fern was floating on the Furukawa-Sawanoike Pond, Kasuga Town, Japan.

 

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