Myosoton aquaticum is a plant species in the genus Myosoton and belongs to the family Caryophyllaceae. It is also called a water chickweed or giant chickweed. It is a perennial herbaceous dicot plant with stems between 10 and 100 cm. high, growing in humid, wet areas, for example, on the sides of gutters or under or between bushes. They are naturally occurring in the temperate regions of central and western Europe. The flowers have petals that are colored white. The plants bloom between June and August.