Blogs > Boat Blog > Rafts of duckweed – a sign of fall

Rafts of duckweed – a sign of fall

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Duckweed on the Hudson River, September 2015. (Photo by John Lipscomb / Riverkeeper)
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We’re seeing big rafts of Duckweed now from about Bear Mountain way up to Catskill. It’s fluorescent green, beautiful.

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It’s being released from the marshes as water chestnut and other vegetation break loose at the end of the season. Once exposed to tidal current, off the Duckweed goes.

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“The flower of the duckweed genus Wolffia is the smallest known, measuring merely 0.3 mm long.”

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