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Project Noah Nature School
Pistia stratiotes
Aquatic plant, rosette of leaves to 8cms diameter, long trailing roots. Pistia is often used in the aquarium trade, to provide cover for fry and small fish.
Growing in small urban pond.
It has the potential to reduce the biodiversity of a waterway. Mats of Pistia block gas exchange at the air-water interface, reducing the oxygen in the water and killing fish. They also block light, killing native submerged plants, and alter immersed plant communities by crushing them.
Spotted on Jan 15, 2005
Submitted on Mar 31, 2013
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