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Local name: বড় চুঁচা
English name: Rice flat sedge
Scientific name: Cyperus iria
Family: Cyperaceae
Annual sedge with a tufted growth form, growing up to 60 cm tall.
Found in wet, marshy areas such as rice fields, irrigation canals, and waterlogged soils.
Thrives during the rainy season, particularly in tropical and subtropical climates.
Commonly associated with rice, but also grows in fields of maize, sugarcane, and vegetables.
Propagates primarily through seeds.
Narrow, linear leaves that are bright green and arranged alternately.
Erect, triangular in cross-section, and smooth.
Umbel-like clusters with multiple spikelets, yellowish-green to brown in color.
Fibrous root system anchoring in wet soils.
Proper water management and maintaining optimum crop spacing to reduce weed growth. Manual removal or tillage before seed maturation. Application of pre-emergence or post-emergence herbicides like butachlor or bensulfuron-methyl, specifically for rice fields.