• Common Name : Diyaparadal

• Scientific Name : Pistia straliotes

• Family : Araceae

• Life cycle : Perennial

• Place of collected : Home garden Gampaha

• Date of collected : 2009.08.12

• Morphological characters : Grows on the water suface. Stems are small. Leaves have not petiols and triangular in shape, cotain spines on leaves. Air spaces inside the leaves. Slim and long flowers, white in color.

• Propagation : Stolens

• Agricultural importance : Blocking of irrigation channels.

• Uses : No specific use

• Control measures : Mechanical methods and hand weeding. Apply chemicles like Gramoxone