Smilax aspera

 An indigenous much-branched climbing shrub rather common in montane zone. Flowering in April.  

ලාවුළු (Donella lanceolata [Syn: Chrysophyllum roxburghii])

 An indigenous common tree of primary and secondary wet evergreen forests from 30 to 900 m elevations, often by river banks.

Stellaria pauciflora

 An indigenous annual herb rare in shaded, moist places in lower montane zone from 915 to 1220 m elevations. Flowering in April.  

Clinopodium umbrosum

 An indigenous herb fairly common in wet patanas, along borders of marshy lands and slopes of tea plantations close to water courses of the wet up country from 2000 to 3600 m elevations. Flowering all the year round. 

Flower Size: 0.4 - 0.6 cm across

Peperomia tetraphylla

 An indigenous perennial herb locally common on mossy rocks and trees in montane forests above 1000 m altitudes. 

Seaside Purslane/Shore Purselane/මහ සාරණ (Sesuvium portulacastrum)

 An indigenous prostrate herb common on beaches and near the coast. 

Digera muricata

 An indigenous annual herb locally common along roadsides and gardens of dry and sandy places. 

මහ සාරණ (Zaleya decandra [Syn: Trianthema decandrum])

 
An indigenous prostrate herb in open places and along roads in dry lowland coastal areas. 

අල වැල්/බෝ කළවැල්/කළවැල්/Forest beanstalk (Brachypterum scandens [Syn: Derris scandens])

 An indigenous woody liana climbing in trees of the dry zone. Common.

Ceylon Spider Lilly/වල් ලූනු (Pancratium zeylanicum)

An indigenous herb rather common in lowlands. Often cultivated. Flowering more or less throughout the year. 

ලියන්/ඇට හෙරලිය (Homalium ceylanicum)

 An indigenous tree of wet forests and sometimes on stony slopes from 150 to 1140 m elevations. 

බට දඹ/දිය දඹ/කොබෝ මල් (Syzygium nervosum [Syn: Cleistocalyx operculatus, Syzygium operculatum])

An indigenous tree locally common, especially in ravines and along river banks of wet and intermediate  zone forests up to 800 (-1300) m elevations.

බල (Nothopegia beddomei)

An indigenous small to medium-sized tree of wet lowlands to hill country forests. Rather common in the intermediate zone and occurs also in the Ritigala hill. Flowering from March to July.

Fox-tail Orchid/Batticaloa Orchid (Rhynchostylis retusa)

An indigenous epiphyte rather rare usually on trees by streams in grasslands in Uva and Eastern provinces. 

Memecylon edule var. petiolatum [Syn: Memecylon petiolatum]

An indigenous large shrub or small tree grows on rock outcrops in the dry zone at low elevations. 

ඉඳි (Phoenix pusilla)

 An indigenous small palm widespread in the wet and dry lowlands up to 500 m elevations. Flowering in May and June. 

එළ නුග (Ficus amplissima)

 An indigenous large tree of open forests, mostly in the dry zone. Often planted. 

වල් කොල්ලු (Cajanus scarabaeoides [Syn: Atylosia scarabaeoides])

 An indigenous twining vine common in lowlands of both wet and dry zones. Flowering probably throughout the year, though most reports are from November to March. 

Gymnostachyum ceylanicum

An indigenous herb common under shade in intermediate zone forests, often in rocky grounds. Flowering from March to August. 

වීර(Drypetes sepiaria)

An indigenous tree of dry zone forests from sea level to 500 m elevations.