White Orange Tip (Ixias marianne)

Common butterfly flies in the dry low country scrublands. Commoner in the northern part of the island especially in the Jaffna and Mannar districts though also occurs in the south and southeastern areas. Larval host plants are Capparis brevispina, Capparis grandis and Capparis sepiaria of the family Capparaceae .  

Afrohybanthus enneaspermus [Syn: Hybanthus enneaspermus]

Common indigenous herb grows among grass in open areas of the low country. Whole plant medicinal and shampoo made from the plant removes dandruff. Flowering throughout the year.

වල් ත්‍රස්තවාලු [Wal-Trasta-Walu](Hewittia malabarica [Syn: Hewittia sublobata])

Common indigenous vine occurs along roadsides, grasslands, scrub lands, forest edges, cultivation, waste lands, etc. from sea level to about 1000 m altitude in both wet and dry zones. Flowering from June to August. 

ගිනි-කැන්ද[Gini-kandha]/Bleeding-heart tree(Homalanthus populifolius)

Probably an introduced tree native to Australia & New Guinea* (Also in Malaysia and Pacific islands) though it was considered as a doubtfully native in Sri Lanka#. It occurs in both primary and secondary forests in the hill country from  1550 m to 2000 m elevations, usually in areas adjacent to tea estates.

* Illustrated field guide to the flowers of Sri Lanka J. & J. de Vlas
# Flora of Ceylon Vol 11 Dasanayaka M.D. & Clayton W.D.*

මහ ඇපල[Maha epala]/Tropical rose-mallow(Hibiscus vitifolius)

Common indigenous shrub occurs in open places, waste lands and forest edges in the dry lowlands below 150 m a.s.l. Flowering from August to September and March to April (Probably also in other months). 

Cyclothea disjuncta?

Location - Bamunukotuwa (Kurunagala district)
Reference - The Lepidoptera of Ceylon - F. Moore, F.Z.S. Vol 3 Page 429 as Thalera disjuncta.
Expanse - 3 cm
External Links -http://www.inaturalist.org/observations/1124359

හුලන් තලා [Hulan tala]/Goat weed/White weed (Ageratum conyzoides)

Native herb of tropical America. Very common invasive weed along roadsides, cultivated grounds and waste places throughout the island. Flowering throughout the year. Flowers white, blue or mauve.

Croton (Codiaeum variegatum)

Native plant of Indonesia, Malaysia and the western Pacific ocean islands. Introduced and widely cultivated in gardens. There are several hundred cultivars with wide diversity of leaf shapes and colors.

බූ-දද-කීරිය[Bu-Dada-Kiriya]/Common Spurgeof (Euphorbia hirta)

Common introduced weed of waste and cultivated grounds.

Grey-breasted Prinia/Franklin's Prinia (Prinia hodgsonii)

An uncommon breeding resident occurs locally from lowlands to mid hills. Much commoner in the dry zone and rare in the wet lowlands. It lives as pairs or as small flocks in forest edges, scrublands and grasslands. Its food consists of small insects such as moths, grasshoppers and caterpillars. The breeding season lasts from March to June. The nest placed within a pocket made by 'sawing' together of two large leaves or few smaller leaves like the Tailor bird. Nest usually build about 2 or 3 feet of the ground and it lays 3 eggs in it. 

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තෙල් තල [Thel Thala]/Gingerlly (Sesamum indicum)

An introduced annual herb with origin uncertain (Probably Africa or India). Widely cultivated and also naturalized along roadsides, waste lands and abandoned fields in the dry zone. Flowering from May to August and possibly throughout the year. Seeds edible.

Sleepy Morning (Waltheria indica)

An introduced shrubby herb native to tropical America.  It occurs along roadsides, weedy fields, waste places, rocky outcrops and cultivation from 8 to 330 m a.s.l. 

Cadaba trifoliata

An indigenous shrub or small tree occurs in lowland dry areas up to about 150 m a.s.l.

Ornate narrow mouthed frog/විසිතුරු මුව පටු මැඩියා (Microhyla ornata)

Rather common small frog inhabiting mainly anthropogenic habitats such as agricultural fields, plantations, home gardens, etc. from lowlands to about 465 m a.s.l. Commoner in the dry lowlands though also recorded from few locations of Central, Sabaragamuwa and Southern provinces. It hides under leaf litter, decaying logs, rocks, etc. during the day and forage during the night around open areas near small water bodies.

Taprobanea spathulata [Syn: Vanda spathulata]

An uncommon orchid species found on shrubs, trees and among rocks in intermediate and dry zone. Flowering from March to September and December.

Knobweed (Hyptis capitata)

Introduced large herb native to tropical America. First collected from Sri Lanka in 1953. Naturalized in waste places and along roadsides in slightly shaded places, often close to ditches and watercourses. It occurs from wet lowlands to lower hills up to 600 m a.s.l. Flowering from January to September.   

කොළොන්[Kolon] (Adina cordifolia [Syn: Haldina cordifolia])

An indigenous large tree common in dry and intermediate zone forests. Juice of bark is used to kill worms in sores and wood use in construction and carving industry. 

Grey-bellied Cuckoo/Indian Plaintive Cuckoo (Cacomantis passerinus)

Rather uncommon winter visitor to the lowland and mid hill scrublands, open forests and gardens. Much common in the dry zone. Also a summer loiterer. Grey-bellied Cuckoo usually seen as solitary birds though rarely occurs in small flocks. It feeds on insects by picking from foliage, ground or taking in flight like flycatchers. It is usually silent during the winter. It breeds in India from July to October. Parasitic on Prinias and Tailor birds. Female occurs in two color phases: reddish brown hepatic phase and the phase which resembles the male.

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Rungia longifolia

An endemic herb under shade and often close to streams in forests of moist lowlands. Flowering from March to April.
  

Heterotis rotundifolia

Native plant of tropical West Africa. Probably escaped from cultivation and naturalized in the wet lowland areas.