Andrographis alata

An indigenous herb common in under shade of shrubs or trees and along borders of rocks in dry zone shrub jungles. Flowering from March to August.

Mitrephora heyneana

An indigenous tree locally common on rocks and along streams in dry and intermediate zone forested hills from 150 to about 450 m elevations.

රට තෝර[Rata thora]/Dhal/Pigeon Pea/Chick Pea/Red Gram (Cajanus cajan)

Introduced shrub native to tropical Asia. Cultivated for edible seeds, of them dhal curry is made.

Lysimachia deltoidea [Lysimachia procumbens]

A native prostrate herb occurs along stream banks and seepage areas in the forests and transition zones between forests and patana grasslands of the hill country above 1900 m elevation. 

පුස් වැල්[Pus wel](Entada rheedei[Syn:Entada pusaetha])

Large native woody climber in moist low country forests up to about 600 m a.s.l. Juice of the wood and bark used in medicine. 

ගල් වෙරළු[Gal veralu](Elaeocarpus subvillosus)

An endemic tree of wet lowland forests up to about 2000 n a.s.l. Flowering from February to April and again from July to November. Fruits in September. 

Anaphalis brevifolia

An indigenous much branched annual or biennial herb occurs in grassy banks and patanas from  1500 to 2100 m a.s.l. Rather common and flowering from September to April. 

කැකිරි[Kekiri]/Melon (Cucumis melo)

An indigenous or introduced herb with climbing or creeping stems. Widely cultivated for its edible fruits. Also escaped and naturalized in waste places.

Lysimachia laxa

An indigenous herb with erect stem occurs in shady places in the hill country forests above 1600 m a.s.l. Flowering from August to September and December to January.

Hedyotis ceylanica [Syn: Metabolus decipiens]

An endemic woody herb locally common in open and secondary places in the montane zone. Flowering from February to August.

හැඩවක[Hadawaka](Chaetocarpus castanicarpus )

An indigenous tree occurs in both primary and secondary rain forests from sea level to about 500 m elevations in wet and intermediate zones.

බෝවිටියා[Bovitiya] (Osbeckia walkeri)

Rather rare endemic shrub occurs in grasslands, open places in forests and forest edges of the montane zone.

Spiranthes australis [Spiranthes sinensis]

An indigenous terrestrial herb grows in wet patana-grasslands in the hill country. Flowering throughout the year.

වල් අරළු[Wal aralu] (Ficus mollis)

An indigenous deciduous banyan or independent tree with few or no aerial roots from the branches common in lowland forests and open rocky places in the dry zone. 

Neanotis monosperma

An indigenous perennial herb common in open wet places in the montane forests and grasslands. Flowering from August to September.

Sri Lanka Wood Frog/ලංකා දිය මැඩියා[Lanka diya madiya] (Hydrophylax gracilis [Hylarana gracilis])

An endemic frog rather common in all three zones up to about 500 elevations. It lives close to water bodies and found on rocks and low vegetation in forests, marshy lands, paddy fields, tanks, ponds and even in home gardens.

සමාදාන[Samadana]/Creeping blepharis (Blepharis maderaspatensis)

Common native trailing herb occurs among grass, usually in partially shaded places along roads, foot paths and jungle borders. Flowering from February to May and again from August to September.

කෙකටිය[kekatiya] (Aponogeton jacobsenii)

Locally common endemic aquatic herb found in shallow or deep ponds and rivulets with stagnant or fast flowing water in higher elevations from 1650 to 2300 m a.s.l. Flowering from March to May and September to October.

වැලිවැන්න[Welivanna] (Tritaxis glabella [Syn: Dimorphocalyx glabellus])

Common small tree or shrub occurs in forests and forest borders, mainly in the dry areas of the low to mid country.

මහ නුග/නුග[Maha nuga/Nuga]/Banyan/Krishna bo/Krishna's cup (Ficus benghalensis)

An indigenous tree also native to Pakistan and India.Now widely cultivated in towns and villages. Also occurs in lowland forests.