Floating duckweed mats can double their cover on still water in days
Duckweeds are tiny floating plants whose fronds multiply by budding so fast that a thin scatter can become a continuous green carpet across a pond within days in warm nutrient-rich water.
The mat shades submerged plants and can swing oxygen levels as biomass rises and decays. Wildlife may use it as cover; managers may fight it when it chokes open water.
Smallest flowering plants can still remake a wetland’s surface. Duckweed turns still water into a living sheet almost overnight when conditions favor boom growth.
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