1. Pantropical floating plant forming a rosette of wedge-shaped leaves; a widespread weed in rivers and lakes
   "Pistia, also known as water lettuce, can become invasive in warm climates"; "Pistia stratiotes, also known as water lettuce, can become invasive in warm climates";
   - water lettuce, water cabbage, Pistia stratiotes, Pistia stratoites

Derived forms: pistias

Type of: aquatic plant, hydrophyte, hydrophytic plant, water plant

Part of: genus Pistia

Encyclopedia: Pistia