Cyanotis ceylanica

 An endemic decumbent perennial in shade or partial shade of forest floor and near streams from 750 to 1220 m elevations.

Murdannia simplex

 An indigenous perennial with basal rosette.  Locally common in shallow soil over rocks,  wet rocky and roadside banks from 875 to 900 m elevations. Flowering in December.

Cyanotis lanceolata [Syn: Cyanotis racemosa]

An indigenous herb grows in shade of forests, near streams and waterfalls, roadsides, banks and footpaths, mainly in high altitudes from (450-) 1100 to to 2400 m a.s.l. Flowering from September to November and January to April.

Cyanotis thwaitesii

An indigenous perennial herb grows on rocky hills and slopes, inselbergs, rock outcrops, shallow soil in rocky grasslands, edge of rock pools, large boulders, rock crevices and rocky banks with seepage; usually in full sun and occasionally in shade from 200 (75) to 1600 m a.s.l. Flowering in August, October to January and March. 

ගිරා පලා[Gira pala] (Commelina indehiscens)

Rather uncommon native herb of evergreen forests and roadsides, often near streams from 250 to 1800 m elevations.  Flowering from November to January. 

බොල් හිඳ[Bol hinda] (Cyanotis cristata)

Common native herb grows in moist crevices or shallow soil on rock outcrops, roadside ditches, under trees and shrubs, thicket edges and near streams from sea level to about 1000 a.s.l.

Commelina ensifolia

Common indigenous herb occurs on rocky hills, rock crevices, edge of rock pools, river banks, scrubs, forests, grasslands, sandy and weedy areas and roadsides from sea level to about 260 m a.s.l. Flowering from March to April, July and September to January.

Cyanotis pilosa

An indigenous herb occurs in montane patanas and open, moist roadsides from 1700 to 2400 m elevations. Flowering throughout the year.

Murdannia loriformis

Rather uncommon native perennial herb grows on rocky slopes in shade from 25 m to 500 m a.s.l. in wet and intermediate zones. Flowering occurs from November to December. Flowers opening around 10.15-10.45 A.M. and fading around 12.00 P.M.

Asiatic dewflower (Murdannia spirata)

Very common native procumbent or ascending herb grows along roadside ditches, edges of ponds, paddy fields and tanks, seepage areas on rocks, stream margins, open areas in forests, grassy places, under shrubs and trees, marshes, etc. from sea level to about 1260 m a.s.l. Flowering from November to May and July. Flowers opening around 10.00 A.M. and fading by 2.00 P.M.

Oyster plant/Moses-In-The-Rushes/Two ladies in a boat(Tradescantia spathacea)

An introduced herb native to Mexico and Guatemala. Cultivated and occasionally naturalized locally. Flowering throughout the year

ගිරා පලා[Gira pala] (Commelina diffusa)

Very common native creeping herb occurs along roadsides, open areas, forest edges, margins of rivers, streams, tanks, ponds and marshes, etc. from sea level to about 1000 (-1540) m a.s.l. Sometimes growing in the water and also a weed in paddy fields. Flowering from October to July.

Commelina clavata

An indigenous herb restricted to the hill country grasslands and disturbed places from  1600 to 1810 m a.s.l. Flowering September, November and January.

Commelina undulata [Syn: Commelina kurzii]

An indigenous ascending and climbing herb common in shaded lowland scrub lands, forests, rocky outcrops, roadsides, banks, etc. from sea level to about 775 m a.s.l. Flowering from December to March.

Striped dewflower (Murdannia striatipetala)

An indigenous annual herb occurs in abandoned paddy fields, wet open sandy areas, ditches, seasonal swampy places, edge of scrubland etc. from sea level to about 30 m a.s.l. Flowering from January to February. 

Cyanotis axillaris

An indigenous herb occurs margins of tanks, ponds, rock pools and water holes, swamps, moist grassy and seepage areas, grasslands, roadsides, roadside ditches, etc, from sea level to 470 m elevations. Flowering from October to April and July.

දියමෙනේරිය[Diya-meneriya]/Benghal dayflower/Whiskered[Garden] commelina(Commelina benghalensis)

An indigenous herb native to the Southeast Asia. It grows in waste lands and roadsides from sea level to about 1000m a.s.l of the island.