A turion (from Latin turio meaning "shoot") is a specialised overwintering bud produced by aquatic plants, especially in the genera "Potamogeton", "Myriophyllum", "Aldrovanda" and "Utricularia".
A turion (from Latin turio meaning "shoot") is a type of bud that is capable of growing into a complete plant. Some aquatic plant species produce overwintering turions, especially in the genera "Potamogeton", "Myriophyllum", "Aldrovanda" and "Utricularia".