දවට (Carallia brachiata)

An indigenous tree common in moist low country. Often planted. Flowering from February to October or probably all year round. 

Flower size - 4 mm across

Phyllanthus gardnerianus

 An indigenous perennial herb or sub shrub of montane rain forests above 1000 m elevations, often in disturbed areas.

Flower size - About 4 mm across.

රැවුල් පුරුක් විල[Rewul Puruk Wila]/Giant Ambulia (Limnophila aquatica)

An indigenous herb common in marshy ponds, margins of tanks, flooded paddy fields in wet and dry lowlands. Flowering from March to December.

තෙලබු[Telabu]/(Sterculia foetida)

 An indigenous tree of woodlands, meadows, relicts in grasslands, water edges, bare rocky hillsides and outcrops with grassy pockets from lowlands to about 360  m elevations,  particularly in dry areas. 

Adenostemma lavenia var. reticulatum [As Adenostemma macrophyllum]

Rather rare native herb grows in moist places in the hill country forests. Flowering throughout the year. 

Flower head size - 0.5 cm across 

ආඩතෝඩ/අගල් ආධාර/පාවට්ටා/වන ඇපල[Adathoda/Agal adara/Pavatta/Wana epala]/Common Cough Cure/Malabar Nut(Justicia adhatoda)

 Common native shrub cultivated as a hedge plant and occasionally on borders of paddy fields in the low and mid country. Widely used in traditional and Ayurvedic medicine as a remedy to cough, asthma, phlegm and fever with several other plant elements.  

පණු අල/පොළොං අල [Panu Ala/Polon Ala] (Typhonium roxburghii)

 An indigenous herb of wet zone and lower hill country. Rather rare.

Polygala arillata

 An indigenous shrub, small tree or sometimes a scandent climber in semi shade of montane forests above 1300 m elevations. Flowering all the year round. 

Calanthe triplicata

Rather rare native terrestrial herb in the shade of trees in montane forests up to about 2134 m elevations. 

Myriactis wightii

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

 

Carex baccans

 An indigenous perennial occurs on wet slopes covered by open forests in the montane zone above 6000 ft elevations.  

Gonostegia triandra (Syn: Pouzolzia bennettiana)

 An indigenous herb or small shrub of wet zone montane forest from 1200 to 2200 m elevations. Flowering and fruiting throughout the year

Impatiens cuspidata subsp. bipartita

A large woody herb occurs along stream banks, open scrub and thickets and such moist places in the hill country rain forests from 1800 to 2700 m elevations. Often form large scattered colonies. Rarely grows in total shade. Sub species bipartita is endemic to Sri Lanka.

Nepalese crane's bill (Geranium nepalense)

 

An indigenous perennial herb grows along roads and moist shady places in the upper montane zone. Mainly occurs around Nuwaraeliya (Between Nuwaraeliya and Maturata, Hakgala). Flowering more or less throughout the year. Very rare. 

Barleria arnottiana

 An indigenous shrubby herb common in the undergrowth of montane forests close to water courses. Flowering from September to April with a peak in October and November  ( var. arnottiana)

var. glabra - Grows in Low and intermediate country. Flowering from November to February.

 

Liparis walkerae

An indigenous rather rare terrestrial herb grows under the shade of trees in the montane forests up to about 1829 m elevations. 

 

වල් දුම්කොළ [Wal Dumkola](Sonchus wightianus)

 Common weed of roadsides and in the mortar of bridges and road embankments in the lower montane zone. Flowering from January to June and probably throughout the year. Possibly a native herb of Sri Lanka since it is falling within the natural distribution range of the species. But in absence of specimens of it earlier than 1915 Sonchus wightianus also considered as an introduced species which is native to India and China (http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:250399-1). 

හැළඹ[Halamba] (Mitragyna parvifolia)

An indigenous tree common in dry deciduous forests.

කන ගොරක/ගොකටු/කොකටිය[Kana Goraka/Gokatu/Kokatiya]/Gamboge (Garcinia cambogioides [Syn: Garcinia morella])

 An indigenous tree distributed in wet evergreen lowland forests. Sometimes also cultivated. Latex of this tree is an excellent gamboge which used locally for paintings and dyeing. 

Tetrapilus polygamus [Syn: Olea polygama]

 

An indigenous small tree of evergreen montane forests, including secondary forests from 1000 to 2400 m elevations.

Flower Size - About 3mm across