Tail flower/Flamingo flower/Laceleaf (Anthurium andraeanum)

Widely cultivated ornamental pot plant native to Colombia and Ecuador. 

ගඟ වැරැල්ල [Ganga Werella](Phyllanthus myrtifolius)

An endemic shrub occurs along watercourses in forests from 300 to 600 m altitudes. Also planted in home gardens as an ornamental hedge plant.

Cardinals guard (Pachystachys coccinea)

Native shrub of French Guinea, Brazil, and Peru. Introduced and cultivated in gardens. 

හැමනිල්ල[Hemanilla] (Pogostemon auricularius)

An indigenous annual herb occurs among short grass along roadside ditches, paddy field borders, and boggy places in the wet lowlands up to about 1000 m a.s.l. Flowering from October to June. 

කරාබු නැටි[Karabu nati]Clove (Syzygium aromaticum)

An introduced tree native to the Moluccas. Cultivated in intermediate to wet zone home gardens. Buds including the calyx tube are the cloves of commerce, a spice. Also use in traditional medicine. Widely cultivated in the intermediate zone north of Kandy.

Surinam Quassia (Quassia amara)

Native tree of Guiana and tropical South America. Introduced and cultivated in Sri Lanka mainly as an ornamental. It is also used in traditional medicine in some countries and can be used as an insecticide.

Oleander Hawk Moth (Daphnis nerii)

Location - Kotte.

Wing expanse - 8 - 10 cm

Reference - The Lepidoptera of Ceylon - F. Moore, F.Z.S. Vol 2 Page 14-15.

External links -  http://www.inaturalist.org/taxa/51996-Daphnis-nerii
Larval host plants - "Feeds on Oleander (Nerium oleander ) and Cinchona" - Moore, F.Z.S., 1882-3, Desert rose (Adenium obesum) & වතු-සුද්ද/Sri Lanka Jasmine/Grape-Jasmine/Wathu-Sudhdha (Tabernaemontana divaricata) - (Sujeeva Gunasena, Personal communication )

බූ ගැටිය/මහ ගැටිය/වට්ටි වැටි[Bu gatiya/Maha gatiya/Watti weti] (Hugonia mystax[Hugonia serrata])

Common native scrambling shrub in the dry zone shrub forests and forest edges. The mature stem is used to make frames of cane and bamboo baskets, hence the vernacular name වට්ටි වැටි. Roots medicinal.

Ipomoea horsfalliae

A twining vine native to Jamaica. Introduced and cultivated in gardens.

සමදරා[Samadara](Quassia indica)

Common native shrub or small tree in forests of wet lowlands. Flowering and fruiting from March to May. Bark, roots and fruits are used in traditional and Ayurveda medicine. Infusion of the leaves is a good insecticide.

Mother-in-law's tongue (Dracaena hyacinthoides [Syn: Sansevieria hyacinthoides])

An introduced herb often planted in hedges. 

හීන් ඇඹල/හීන් ඕලු [Heen ambala/Heen olu]/Crested snowflakes/Floating heart(Nymphoides hydrophylla)

An indigenous aquatic herb occurs in the dry lowland ponds and stagnant pools from sea level to about 150 m a.s.l. Very common in the Trincomalee district.  Flowering throughout the year.

සාදික්කා[Sadikka]/Mace/Nutmeg(Myristica fragrans)

Native tree of Moluccas. Introduced and cultivated in intermediate and wet zone home gardens. Fruit medicinal and aril/seed use as a spice. 

පතොක් [Pathok]/Pricky pear (Opuntia monacantha)

An introduced ornamental cactus native to tropical North America. Cultivated and also escaped and naturalized along roadsides of the dry zone.

රත් පිටවක්කා[Rat pitawakka] (Phyllanthus urinaria)

Native herb grows in open areas of both wet and dry zone from sea level to about 1500 m elevations.

අලිගැට පේර[Aligata pera]Avacado/Alligator pear (Persea americana)

Native tree of Mexico and Central America. Widely cultivated in home gardens as a fruit tree. 

Suregada lanceolata

An indigenous shrub occurs along river and stream sides in lowland primary and secondary forests up to 800 m a.s.l.

* Suregada angustifolia (Müll.Arg.) Airy Shaw is a synonym of Suregada lanceolata 

Barleria courtallica (Barleria nutans)

Very rare shrubby herb considered as a Critically Endangered (Possibly Extinct) plant under 2012 Red list. It has only been reported from two mid- hill localities in Kandy district (Hantana & Alagalla)  till recent discovery of it from two wet lowland forest patches (Jayasinghe H.D., 2015). 

Crown of thorns (Euphorbia milii)

Native shrub of Madagascar.Widely cultivated in home gardens as an ornamental. 

ගහල[Gahala]/Taro/Elephant's ear (Colocasia esculenta)

An introduced large herb probably with Southeast Asian origin. Now pan-tropically cultivated and also escaped and naturalized in open wet places. Very common from lowlands to intermediate altitude throughout the country. Its underground stem edible and many edible and ornamental cultivars exist. It is considered as an invasive since dense stand of wild Taro displace native flora and block waterways, canals and invade rice fields in the wet zone. 

නෙළු[Nelu] (Strobilanthes adenophora)

Rather rare endemic under shrub in southwest wet lowland forests, often by streams from 50 m to 200 m altitudes. 

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.

කිණිහිරිය/ඇට ඉඹුල්/එළ ඉඹුල් [Kinihiriya/Ata Imbul/Ela Ibul]/Torch wood/Yellow Silk Cotton (Cochlospermum religiosum)

Native tree of India. Introduced and also naturalized in rocky places of dry and intermediate zone. Often cultivated near Buddhist temples. Flowering from March to May. Trees deciduous in February and March.

පට්ට ඇපල/ඇපල [Patta Epala/Epala]/Caesar weed/Bur mallow (Urena lobata)

Very common native herb grows along roadsides, waste places, and secondary vegetation. 

Bonpland's croton (Croton bonplandianus)

An introduced woody herb of dry and often sandy open areas in the low country. Native to South America and naturalized in the Sri Lanka.

Three-leaved Lantana/Cambara (Lantana trifolia)

An introduced perennial herb or sub-shrub native to tropical America. Naturalized along roadsides of the mid hills. Flowering from March to September.

Glossocarya scandens

Rather rare indigenous straggling shrub or woody vine occurs in the dry zone forests.

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.

වල් කොල්ලු [Wal kollu](Teramnus labialis)

Common indigenous liana of the low country. Flowering from November to June.

Allamanda blanchetii

Large introduced shrub native to the Brazil. Cultivated as an ornamental in gardens. 

Pogostemon hirsutus

Common endemic herb in under shade of montane and sub montane forests. Often close to the water sources. Flowering from October to March.

Atlas Moth (Attacus taprobanis)

A large moth lives in Southern India and Sri Lanka. Adult moths do not take foods and survive on fat they have stored from the larval period. The females sitting most calm and emit pheromones, that the active males can notice from a distance. As per Moore at that time Attacus taprobanis was a common insect in the Colombo. Probably due to readily availability of its host plant Cinnamon in the cultivation. 

Location - Ambagaspitiya, Gampaha district.

Wing expanse - 17 - 23 cm

Reference - The Lepidoptera of Ceylon - F. Moore, F.Z.S. Vol 2 Page 124-125.

External links -  http://www.inaturalist.org/listed_taxa/3412320
Larval host plants - "Feeds on Cinnomon and others trees (Thwaites)" - Moore, F.Z.S., 1882-3
                                     Elaeocarpus serratus (වෙරළු/Wild Olive) - (Rohana Gunawardana Personal communication )

ඔළිඳ[Olinda]/Crab's Eyes/Indian Liquorice (Abrus precatorius)

Common indigenous vine twining around stems of other trees or bushes, occurs from lowlands to lower hills. Seeds used to make ornaments and in old days as goldsmith's weights. Seeds poisonous. Leaves and roots are used in traditional medicine. 

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.

Spiral Ginger (Costus afer)

An introduced large herb native to West Africa. Cultivated as an ornamental and probably also naturalized in some wet zone places*.

* Naturalized plants observed at roadsides of Athweltota and along the Nambapana Ela stream close to the Madakada monastery of Ingiriya.

වැල් බූටෑ [Wel buta] (Rubus indicus)

An indigenous straggling shrub in montane forests, secondary forest borders, jungle roadsides, hilly slopes and shady areas close to streams from 300 to 2000 m a.s.l. Flowering throughout the year. Glossy red fruits are edible. 

Ardisia zeylanica [Syn: Ardisia moonii]

Rather common endemic undershrub occurs in shady places of wet zone up to 1500 m elevations. Flowering and fruiting from December to May.

පාලඟ/පලු කන්[Palanga/Palu kan] (Uvaria zeylanica)

Native slender straggling climber in both wet and dry low country. Mostly near the sea and often on sand dunes. In the wet zone only occurs in secondary shrub.