• Common Name : Thunhiriya Pan
• Scientific Name : Schoenoplectus grossus
• Family : Cyperaceae
• Life cycle : Annual
• Morphological characters : Grows up to 1 m height. Have bushy appearance. Create few erect and pointed leaves. Produce one prominent stalk and at the terminal end of it Cluster of seeds occurs after producing three distinguish leaves.
• Propagation : Seeds
• Agricultural importance : widespread annual weed
• Uses : Use in traditional industries.
• Control measures : Deep plowing and proper field level.Repeated tillage or soil disturbance Hand weeding. Chemical control.