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Green Falls Reservoir, Voluntown

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2005 Aquatic Plant Survey Map of Green Falls Reservoir

(1.5 MB, .pdf format*)

Transect Data (238 KB, .pdf format*)  | Water Data

Green Falls Reservoir is a 48.2 acres water body located within Pachaug State Forest.  Its maximum depth is 26 feet and its mean depth is 12 feet.  There is a road that borders its northeastern side, which also includes a public boat launch and swimming area.  No gas motors are allowed in the reservoir.  There is no residential development and the only break in the wooded buffer around the lake is the beach area.

During our August 2005 survey Utricularia purpurea (purple bladderwort) was widespread around the edge of the reservoir.  The deeper middle of the reservoir, measuring over 18 feet deep, had no observable vegetation during the survey.

Other aquatic species were found in smaller patches around the lake including;  Myriophyllum humile (low water milfoil), Utricularia radiata (floating bladderwort) and Eriocaulon aquaticum (sevenangle pipewort).  Nymphaea odorata (white water lily) was found on the north, west and east sides, while Nuphar variegata was found on the south, west and north sides.  Gratiola aurea (golden hedge-hyssop) was only found on the east side.  An unidentified sedge was found on the north side, and Eleocharis acicularis (needle spikerush) was found on the south side.

Find Common Plant Names

(65 KB, .pdf format*)

Species recorded in our 2005 survey of Green Falls Reservoir. Click on plant to view herbarium mount. (invasive species in bold)

Eleocharis acicularis

Eriocaulon aquaticum

Gratiola aurea

Myriophyllum humile

Nuphar variegata

Nymphaea odorata

Potamogeton confervoides

Unidentified sedge

Utricularia purpurea

Utricularia radiata


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