කඳුලැස්ස/Indian Sundew (Drosera indica)

An indigenous  small herb of moist places near paddy fields, swamps, ditches, shallow pools and wet patanas. Common in lowlands and sometimes in lower hills. 

Canscora heteroclita

 An indigenous slender herb common in exposed, damp, grassy places, usually among rocky outcrops in the northern, western and eastern parts of the dry lowlands and in the dry intermediate region.  Flowering from October to February.

Centranthera tranquebarica

An indigenous herb of damp grassy places close to water sources, ponds or paddy fields in both dry and wet zones. Rather rare and flowering from May to February..

Eurasian Wigeon/රන් පාට තාරාවා/රන්කිරුළු ගවි-සේරුවා [Ranpata Tharawa/Rankirulu Gavi-Seruwa] (Mareca penelope)

 
Common winter migrant to salt or brackish lagoons, salt-pans, estuaries and even freshwater tanks in the northern areas of the country. Occasionally observed also in other lowland areas. While in Sri Lanka it keeps in small to large flocks and rests during the day time on fresh or salt open water. It feeds on roots, stem and leaves of grasses and other plants grows in shallow water at night, often up-ending.