Do you think you have discovered an aquatic invasive species?
Parrotfeather has both submerged and emergent leaves. Its feather-like leaves are arranged around the stem in whorls of four to six. The submersed leaves are 1.5 - 3.5 cm long. The emergent leaves are 2 to 5 cm long with 16 to 18 divisions per leaf. The emergent stem and bright green leaves grow up to a foot above the water. White flowers are known to occur in North America.
Where it has been found
Populations have been found in the Fraser Valley of B.C.
Ecological and economic impacts
Parrotfeather can alter native vegetation and shade natural algae that serve as the basis for the aquatic food chain. Parrotfeather can cause problems in irrigation and drainage canals and clogs waterways, which can restrict recreational activities such as boating, swimming and fishing. The dense growth of this plant creates stagnant waters, increasing breeding grounds for mosquitoes (some of which can carry diseases).
Origins and mode of arrival
Native to South America
Mode of dissemination
Parrotfeather is an example of a plant introduced for use in indoor and outdoor aquariums and water gardens that has escaped and spread to natural aquatic ecosystems.
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