Farwell's Water-milfoil Guide - New York Natural Heritage Program

An aquatic plant of acidic ponds, lakes, and shorelines. These often have gravelly, sandy, or silty bottoms (New York Natural Heritage Program 2004). Small ponds and lakes, marsh borders (Voss 1985). Acid ponds and streams (Crow and Hellquist 1983).

Associated Ecological Communities

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Cultural eutrophic lake*

The aquatic community of a formerly eutrophic to mesotrophic lake that has received an increase in nutrients (especially phosphorus and nitrogen) from sewage effluent, agricultural runoff, and other pollutants.

* probable association but not confirmed
Eutrophic pond*

The aquatic community of a small, shallow, nutrient-rich pond. The water is usually green with algae, and the bottom is mucky. Eutrophic ponds are too shallow to remain stratified throughout the summer; they are winter-stratified, monomictic ponds.

* probable association but not confirmed

Marsh headwater stream*

The aquatic community of a small, marshy perennial brook with a very low gradient, slow flow rate, and cool to warm water that flows through a marsh, fen, or swamp where a stream system originates. These streams usually have clearly distinguished meanders (i.e., high sinuosity) and are in unconfined landscapes.

* probable association but not confirmed

Associated Species

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Seven-angle Pipewort (Eriocaulon aquaticum)
Algae-like Pondweed (Potamogeton confervoides)
Ribbon-leaf Pondweed (Potamogeton epihydrus)

Schoenoplectus Subterminalis (torrey) Soj (Schoenoplectus subterminalis)
Eastern Purple Bladderwort (Utricularia purpurea)

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© 2004-2012 New York Natural Heritage Program, a partnership between
the New York State Department of Environmental Conservation and
the State University of New York College of Environmental Science and Forestry

Please cite this page as:
New York Natural Heritage Program. 2013. Online Conservation Guide for Myriophyllum farwellii. Available from: http://acris.nynhp.org/guide.php?id=9105. Accessed June 19th, 2013.