green leaves pistia stratioteswater lettuce form thick floating mats covering the entire surface pond

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Green leaves of Pistia stratioteswater lettuce form thick floating mats covering the entire surface of the pond. Royalty Free Stock Photo

Green leaves of Pistia stratioteswater lettuce and Duckweed water lens covering the entire surface of the pond. Royalty Free Stock Photo

Green leaves of Pistia stratioteswater lettuce form thick floating mats covering the entire surface of the pond.

Pistia stratioteswater lettuce and Duckweed water lens covering the pond. Royalty Free Stock Photo

Pistia stratioteswater cabbage,water lettuce,Nile cabbage,shellfloweris a free-floating plant with many spongy,dusty green simple leaves.The leaves are covered in very fine hairs and arranged in a spiral pattern from the center of the plant.It is a very aggressive invader and can form thick floating mats covering the entire surface of the pond. Its native distribution is uncertain, but probably pantropical.