Urochloa subquadripara [Syn: Brachiaria subquadripara]

An indigenous perennial common in fallow fields, grassy roadsides, waste places  and along stream banks from sea level to about 1000 m a.s.l. It is a very good pasture grass. 

Eragrostis unioloides

Common native grass species distributed throughout the island from sea level to about 2300 m elevations. 

Sour Grass (Paspalum conjugatum)

Probably a native grass of tropical America. Introduced to Sri Lanka and now a common weed in plantations, lawns, roadsides and other open grassy areas from sea level to about 1100 m elevations. 

Mission Grass/Crab Grass (Setaria parviflora [Syn: Pennisetum polystachion])

Native plant of tropical Africa. Introduced to Sri Lanka as an ornamental grass. Escaped and naturalized along roadsides, cultivated lands, fallow fields, etc. from sea level to about 1100 m a.s.l. It has become an invasive weed of forests and plantations. 

ලෙව්[Lev]/Bareet Grass (Leersia hexandra)

An indigenous grass species common in marshes, ponds and paddy fields throughout the island. Serious weed in paddy fields though used as a fodder for cattle.

බැල තණ/වල්මල් කුරක්කන්[Bela Tana/Walmal Kurakkan]/Goose Grass(Eleusine indica)

Common indigenous annual or short-lived perennial widely distributed in both wet and dry zones up to about 1400 m elevations.  Often a weed of cultivation. Also occurring in tea estates, lawns, gardens, waste areas, roadsides as well as lowland jungles. 

කලඳන/කලමරුවා[Kaladana/Kalamaruwa] (Ipomoea nil)

An introduced ornamental vine native to the America. Escaped and naturalized along roadsides, disturbed areas and scrublands, mostly in the wet zone. But also found near coast in the northern dry zone.

Sacciolepis interrupta

Common native grass species occurs in paddy fields, marshes and shallow lakes from low to medium elevations. It is eaten by cattle. 

බටදැල්ල[Batadhalla] (Isachne globosa)

Common native annual or short-lived perennial grass species grows in marshy habitats, rice fields, stream banks and ditches from sea level to 1800 m a.s.l. Troublesome weed of  paddy fields though use as a fodder for cattle. 

බද මල් තණ[Bada Mal Tana] (Ischaemum muticum)

An indigenous perennial occurs mainly near sea level on beaches, sandy shores and coconut plantations. An endemic variety srilankense is known only from two collections made in a single population from Pallugaturai of Puttalam district.

ගිරා තණ/හීන් මාරතු[Heen Marathu/Gira Thana]/Wild Millet (Echinochloa colonum)

Common native tufted annual widely distributed often in or near water as weed of paddy fields and disturbed grounds from sea level to 1300 m a.s.l. in all three climatic zones. The grass including seed is readily eaten by cattle. The grain is used as food in India by poorer classes and in Myanmar in times of scarcity.