![Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy](https://l450v.alamy.com/450v/2cdkyf8/water-lettuce-pistia-stratiotes-completely-covers-a-pond-at-the-ornamental-gardens-ottawa-ontario-canada-2cdkyf8.jpg)
Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy
![Floating Plant Water Lettuce Pistia Stratiotes Linn Stock Image - Image of hydrophyte, meadow: 65617971 Floating Plant Water Lettuce Pistia Stratiotes Linn Stock Image - Image of hydrophyte, meadow: 65617971](https://thumbs.dreamstime.com/z/floating-plant-water-lettuce-pistia-stratiotes-linn-vase-65617971.jpg)
Floating Plant Water Lettuce Pistia Stratiotes Linn Stock Image - Image of hydrophyte, meadow: 65617971
![Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy](https://c8.alamy.com/comp/2CDKYF8/water-lettuce-pistia-stratiotes-completely-covers-a-pond-at-the-ornamental-gardens-ottawa-ontario-canada-2CDKYF8.jpg)
Water lettuce (Pistia Stratiotes) completely covers a pond at the Ornamental Gardens, Ottawa, Ontario, Canada Stock Photo - Alamy
![Pistia stratiotes showing damage from frost. Image courtesy of A Hussner. | Download Scientific Diagram Pistia stratiotes showing damage from frost. Image courtesy of A Hussner. | Download Scientific Diagram](https://www.researchgate.net/profile/Rob_Tanner2/publication/321998764/figure/fig1/AS:574335577530368@1513943680377/Pistia-stratiotes-showing-damage-from-frost-Image-courtesy-of-A-Hussner_Q320.jpg)