Purple potato vine/Brazilian nightshade (Solanum seaforthianum)

 An ornamental unarmed climber native to Brazil. Widely cultivated and perhaps occasionally naturalized.

Yesterday-today-and-tommorrow (Brunfelsia pauciflora)

 An introduced ornamental shrub native to South America. Cultivated in home gardens. 

තිත්බටු/තිත්ත බටු[Tibbatu/Titta batu](Solanum violaceum)

Very common native slender armed shrub occurs as a weed of roadsides, waste places and abandoned cultivated grounds from sea level to about 2100 m elevations. 

රට අත්තන/තුන්බෝ අත්තන[Rata Attana/Thunbo Attana]/Trumpet flower/Angel's trumpet (Brugmansia × candida)

Tall shrub or small tree. A hybrid between Brugmansia aurea and Brugmansia versicolor of the Andes. Introduced as an ornamental hedge. 

නයි බටු/දෙහෙල් බටු[Nai batu/Dehel batu]/Devil's apple/Cockroach berry (Solanum capsicoides)

An introduced undershrub native to tropical America. Escaped and naturalized along moist shady roadsides of the hill country up to montane areas.  

රට අත්තන/තුම්බෝ අත්තන[Rata Attana/Tumbo Attana]/Trumpet flower (Brugmansia suaveolens)

An introduced tall shrub or small tree native to the Southeastern Brazilian coastal rain forests. Widely cultivated in tea planting districts and also naturalized along streams above 400 m a.s.l. Flowering at the end of the dry season and during the rains. The flowers are usually white but yellow or pink color varieties also occurs.

තිබ්බටු/ගෝන-බටු[Tibbatu, Gona-Batu] (Solanum torvum)

Common introduced shrub naturalized along roadsides and waste places especially in the wet zone up to about 1400m alt. Flowering throughout the year. 

කලුකම්බේරිය[Kalukamberiya] (Solanum americanum)

An introduced and naturalized common weed in cultivation, roadsides, waste places, especially in the montane zone up to 2000 m a.s.l. Flowering throughout the year. Native to sub tropical and tropical America. The leaves are sometimes used as a vegetable.

එළ බටු[Ela batu]/Egg plant/Aubergine/Brinjal (Solanum melongena)

An introduced herb with uncertain origin. Often cultivated as the Brinjal to use its purple oblong fruit as a vegetable. Escaped and naturalized plants also occurs along roadsides and waste lands. Wild fruits are also eaten as a curry. Cultivated plants unarmed.

Cutleaf groundcherry (Physalis angulata)

An introduced annual herb native to America. Occasional weed of low moist ground. Common near the Negombo.

කොච්චි මිරිස්/නයි මිරිස්[Kochi miris/Nayi miris]/Bird pepper (Capsicum frutescens)

Domesticated species with possible South American origin. Widely cultivated in home gardens throughout the country. 

මිරිස් [Miris]/Chilli/Red pepper (Capsicum annuum)

Native plant probably of Mexico to Colombia. Now widely cultivated in plantations and home gardens. Occasionally escaped.

Queen-of-the-night/Lady-of-the-night/Night blooming Jasmine(Cestrum nocturnum)

Native shrub of Mexico. Introduced and often cultivated in home gardens for its scent. Sometimes escaped and naturalized. Flowering in June, November and probably in other months of the year during the dry season. Flowers opening during the night.

Red cestrum (Cestrum elegans)

An introduced straggling herb native to Mexico. Cultivated as an ornamental plant and also naturalized in the hills, usually along forest margins. 

හකරිල්ලා[Hakarilla] (Solanum mauritianum)

A native plant of Argentina. Introduced and naturalized along roadsides and streams in the montane zone. Flowering throughout the year. 

Cup-of-gold (Solandra maxima)

An introduced woody climber native to Mexico, Peru and Venezuela. Cultivated in gardens due to its attractive very large flowers.

Devil's fig (Solanum asperolanatum [Syn: Solanum hispidum])

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Native shrub of Peruvian Andes.  Escape of Hakgala botanical garden in 1926 and now naturalized along roadsides and forest edges in the hill country at about 1500m altitude. Above plant was photographed at Pattipola - Horton plains road.

වෙල් තිබ්බටු[Wel-tibatu] (Solanum trilobatum)

An uncommon indigenous slender prickly scrambling shrub grows in northern dry lowlands. Flowering during the rainy season. The fruits are edible and whole plant is used in Ayurvedic medicine. According to the Flora of Ceylon (Vol 6 page 382) “The lack of recently collected materials may indicate that it is decreasing in occurrence”