Water lettuce Information & Care

Back to Freshwater Aquarium Plants Species
Plant Type Floating plant
Plant Family Araceae
Common Name Water lettuce
Scientific Name Pistia
Description

Pistia is a genus of aquatic plant, its members are often called water lettuces. Its native distribution in uncertain, it can survive in all temperate fresh waterways.

Pistia floats on the surface of the water its roots roots hanging submersed beneath floating leaves. It is a perennial monocotyledon with thick, soft leaves that form a rosette. The leaves can be up to 14 cm long and have no stem, they are light green, with parallel veins, wavy margins and are covered in short hairs. The flowers are dioecious, and are hidden in middle of the plant amongst the leaves, small green berries form after successful fertilization. The plant can also undergo asexual reproduction, mother and daughter plants are connected by a short stolon, forming dense mats.

The growth habit Pistia can make it a weed in waterways, Pistia stratiotes is a common aquatic weed in the United States, particularly in Florida where it may clog waterways. Pistia has the potential to reduce the biodiversity of a waterway. Mats of Pistia block gas exchange at the air-water interface, this reduces the oxygen in the water, killing fish, they also block light killing native submerged plants, and alter emersed plant communities by crushing them.

Pistia can be controlled by mechanical harvestors that remove the water lettuce from the water and transport it to disposal on shore. Aquatic herbicides may also be used. Two insects are also being used as a biological control. Adults and lavae of the South American weevil, Neohydronomous affinis feed on Pistia leaves, and the lavae of moth Spodoptera pectinicornis from Thailand, both are proving to be useful tools in the management of Pistia.

From wikipedia.org

MEMBER TANKS

30 Gallons Planted Tank

30 gallons planted tank (mostly live plants and fish) - My fish tank
Description: My fish tank

80 Gallons Planted Tank

80 gallons planted tank (mostly live plants and fish) - My 80 gallon setup misc convicts and live plants Pic is not the best ill try for another one soon
Description: My 80 gallon setup misc convicts and live plants Pic is not the best ill try for another one soon

Planted Tank

planted tank (mostly live plants and fish) - Im just me thanks
Description: Im just me thanks

77 Gallons Planted Tank

77 gallons planted tank (mostly live plants and fish) - dual trigon 350 corner unit
Description: dual trigon 350 corner unit

100 Gallons Planted Tank

100 gallons planted tank (mostly live plants and fish) - Planted community tank.
Description: Planted community tank.