Table 2.

Major weed flora of rice fields in South Asia

Grass weeds	Broadleaved	Sedges	References
Dactyloctenium aegyptium (L.) Willd (Crow footgrass); Digitaria sanguinalis (L.) Scop (Large crabgrass); Echinochloa colona (L.) Link (Jungle rice); Echinochloa crus-galli (L.) Beauv (Barnyard grass); Eleucine indica L. Gaertn (Goose grass); Eragrotis japonica (Thunb.) Trin (Pond lovegrass); Oryza sativa L. (Wild rice); Panicum repense L. (Torpedo grass); Paspalum distichum L. (Seashore paspalum/Knotgrass)	Ammennia baccifera (Monarch redstem); Commelina benghalensis L. (Day flower); Digera arvensis Forsk; Eclipta alba (L.) Hassk (False daisy); Ludwigia parviflora L. Roxb (Water primerose); Marselia quadrifolia L. (Water clover); Monochoria vaginalis (Pickerel weed); Phyllanthus niruri L. (Gale of the wind); Physalis minima (Little gooseberry); Portulaca oleracia L. (Common purslane); Trianthema portulacastrum L. (Horsepurslane)	Cyperus difformis L. (Smallflower umbrella-sedge); Cyperus. esculentus (Yellow nutsedge); Cyperus rotundus L. (Purple nutsedge); Fimbristylis miliacea (L.) Vahl (Fringerush); Scirpus maritimus L. (Saltmarsh bulrush)	Rao et al. (2007), Kumar and Ladha (2011), Chhokar et al. (2014)