Curly pondweed (Potamogeton crispus)is a submerged perennial that resembles many native pondweeds. Care must be taken to correctly identify this species. Rigid, reddish-green, oblong leaves have distinct, finely toothed, wavy edges. The plant’s flat, reddish-brown stem grows in water depths from 1-16 feet. Most reproduction is from winter buds, called turions.
Distribution:
NOTE: If you receive a "sign in" message, click cancel to continue. Confirmed observations of Curly pondweed submitted to the NYS Invasive Species Database. For more information, visit iMapInvasives
Habitat:
Curly pondweed is tolerant of low light and low water temperatures. It invades both shallow and deep water.
Threats & Impacts:
New plants form under ice cover during late winter, making curly pondweed one of the first plants to emerge in late spring. Plant die-offs in early summer may cause a critical loss of oxygen.