Biological Perspective
Invasive Aquatic Plants Threatening Maine�s Inland Waters
Hydrocharis morsus-ranae
Frogbit
Nymphoides peltata
Yellow floating heart
Egeria densa
Brazilian elodea
Najas minor
European naiad
Potamogeton crispus
Curly-leaf pondweed
Cabomba caroliniana
Fanwort
Hydrilla verticillata
Hydrilla
Trapa natans
Water chestnut
Myriophyllum aquaticum
Parrot feather
Myriophyllum heterophyllum
Variable-leaf watermilfoil
Myriophyllum spicatum
Eurasian watermilfoil
Scientific Name
Common Name
This table shows the 11 invasive aquatic plant species considered threats to Maine�s inland waters. The most recent surveys indicate that none have been found in Long Pond, although the presence of
variable-leaf watermilfoil has been confirmed in Messalonskee lake. This finding suggests that a local threat exists and warrants some cause for concern. The lake and, more specifically, the boat ramp in the
 South Basin of Long Pond should continue to be monitored in order to prevent the introduction of these unwanted species.