• Common Name : Diya karambu

• Scientific Name : Ludwigia decurrens

• Family : Onagraceae

• Life cycle : Annual

• Morphological characters : Flowers : yellow, with 4 petals and 8 to 12 stamens. Stigma undivided. Sepals narrow, elongate, pointed, alternating with the petals, and straight, not curling downward.

Seed : capsule elongate, not square at the bottom. Flowers and seed capsules on long flower stalks, nearly equal in length to the leaves.

Leaves : elongate, alternate, with smooth outer margins, and short to absent petioles .

Plant 1 to 2 feet in height

• Propagation : Seeds

• Agricultural importance : Compete with crops for nutrition, water and solar radiation.

• Uses : No specific use.

• Control measures : Hand weeding and mechanical