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Floating & Rooted Pond Weeds

 

Nymphaea spp.
Nymphaea spp.

Water Lily (Nymphaea spp.)

Waterlilies have large tubers well rooted in the lake or pond bottom and large floating leaves. They are often attractive and desirable plants, but can crowd coves and other areas making access very difficult.  Mechanical control should involve digging out the roots, since simple cutting of the stems will not have an effect on the future growth of the plant.

Nuphar spp.
Nuphar spp.

Spatterdock (Nuphar spp.)

Spatterdock (sometimes called yellow waterlily) have large tubers well rooted in the lake or pond bottom and large floating leaves. They are often attractive and desirable plants, but can crowd coves and other areas making access very difficult.  Mechanical control should involve digging out the roots, since simple cutting of the stems will not have an effect on the future growth of the plant.

Potamogeton spp.
Potamogeton spp.

Narrowleaf Pondweeds (Potamogeton spp.)

Narrowleaved pondweeds are perennials that have grass or hair like submersed leaves that may or may not appear bushy in form depending upon species.  Some species will grow along shoreline areas to depths of approximately 4 feet where others may grow only in areas where the water is 6 to 8 feet deep.

Potamogeton crispus

Curlyleaf (Potamogeton crispus)

Curlyleaf pondweed is characterized by its curly or wavy membranous leaves, which have a row of small teeth along their edges.  Flowers are borne on spikes.

 Potamogeton spp.

American Pondweed (Potamogeton spp.)

There are several species of pondweed having widely variable forms.  A few of the more common ones are displayed here.  Many species have floating elliptical leaves and underwater leaves of a different shape.  Flowers are borne on spikes, which usually rise above the water surface.