Gaertnera walkeri

An endemic shrub occurs in the hill country forests from 900 to 2000 m a.s.l.

Queen of flowering trees/Pride of Burma (Amherstia nobilis)

Native tree of  Myanmar (Former Burma). Introduced to the Peradeniya botanical garden in 1860 and since then it has been cultivated as an ornamental tree. The Queen of flowering trees is now extinct in the wild.

ඇත් අඩි[Eth adi] (Elephantopus scaber)

Common indigenous herb grows along roadsides, patanas, scrub lands, plantations and as a weed in lawns from lowlands to 2100 m  altitudes in the hill country.Roots and leaves medicinal.

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.