Last Updated October 2018 1 State of Michigan's Status and Strategy for Water Lettuce (Pistia stratiotes L.) Management Scope
![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
![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
![Water lettuce (Pistia stratiotes) invasive species growing on surface of pond pool, Botanic Garden, Sopron, Hungary Stock Photo - Alamy Water lettuce (Pistia stratiotes) invasive species growing on surface of pond pool, Botanic Garden, Sopron, Hungary Stock Photo - Alamy](https://l450v.alamy.com/450v/fgmfrp/pistia-stratiotes-water-lettuce-covering-an-ornamental-pond-fgmfrp.jpg)