There are several aquatic nuisance plants in Lake Champlain and along its shores and tributaries.
- Water Chestnut
- Eurasian watermilfoil
- Variable-leaved Watermilfoil
- Japanese knotweed
- Purple Loosestrife
- Didymo (rock snot)
Click on each plant name to see an image of that plant.
Invasive plants are harmful to Lake Champlain for several reasons: plants that native fish and animals feed on are replaced by these invasives (no animals can feed on the invasives), invasive plants can spread across large areas suffocating native plants and ecosystems since nothing eats them, and their uncontrolled growth can make recreation difficult by tangling motors, preventing fishing, and taking away swimming opportunities.