Spirodela polyrhiza

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Far below normal precipitation has caused a drought and increased fire danger levels. All of Connecticut is currently in a Stage 2 Drought Advisory. Residents are encouraged to be mindful of water consumption and use extra caution to prevent fires. An emergency burn ban remains in effect at all state parks, forests, and wildlife management areas, prohibiting the use of all outdoor grills, firepits, campfires, etc.

Great Duckweed
Spirodela polyrhiza

Herbarium mounts:

Connecticut River 08/19/2020
Elise Lake 07/26/2018
Rolling Ridge Pond 06/12/2009
Mackenzie Reservoir 08/07/2007
Pachaug Pond 08/23/2018
Phipps Lake 06/06/2018
Quonnipaug Lake 06/29/2020
Rogers Lake 07/15/2021
Silver Lake 07/01/2008
Twin Lake North 09/11/2018
Twin Lake South 09/13/2018
Youngs Pond 07/01/2009

Connecticut State The Connecticut Agricultural Experiment Station

Great Duckweed Spirodela polyrhiza

Great Duckweed
Spirodela polyrhiza