Biodiversity of Sri Lanka

 An indigenous annual herb common in sandy or clayey areas especially near the sea in the dry zone. Flowering from December to June (Probabl...

 An endemic herb rather common along the shores on south and west coast, usually on sand. Rarely on rocks just behind the seashore. 

Rather rare native herb grows in moist places in the hill country forests. Flowering throughout the year.  Flower head size - 0.5 cm across 

An endemic rather weedy herb   grows at fairly high elevations.      

Common native herb grows among short grass in montane scrubs and forests. Flowering from September to April and probably throughout the year...

 Common weed of roadsides and in the mortar of bridges and road embankments in the lower montane zone. Flowering from January to June and pr...

An endemic tall herb of moist shady places at forest edges and roadsides above 1000 m a.s.l. Rather uncommon. Flowering throughout the ye...

Common native herb of forest edges in moist places, generally above 5000 ft. Flowering throughout the year. 

An indigenous herb common in the moist boggy grounds at the margins of pools in the montane zone. Flowering from February to March.

An indigenous common weed of drainage ditches, tea estates and moist waste grounds. Flowering throughout the year. 

An indigenous shrub common in jungle paths and montane forests from 1500 - 1800 m elevations. Flowering from December to June.

An indigenous very common weed of cultivation and roadsides at mid elevations. Flowering from September to June.

An introduced herb native to tropical South America. A common weed in cultivated grounds and wastelands. Flowering throughout the year.

An indigenous perennial herb growing in patana grasslands, roadsides and forest margins above 1000 m a.s.l. Flowering from October to May...

An endemic herb grows in moist rocky crevices above 6000 ft. elevations. Rare. Flowering from March to May.

Common native annual herb in moist soil and margins of paddy fields. Flowering from September to March. Whole plant medicinal.

Rather rare endemic perennial herb or subshrubs occurs in moist shady places of the hill country.  Flowering from February to May. 

Native herb of Mexico and West Indies . Probably introduced as an ornamental (Earliest specimen was collected from the neighborhood of  H...

An introduced herb native to temperate and tropical  America . Naturalized in  Sri Lanka  and occurs as two varieties. var. pilosa  ( Ab...

An uncommon  native prostrate herb on moist grounds like margins of tanks in the drier northern part of the country. Flowering throughout...