Jacquemontia paniculata

Probably an indigenous vine occurs on sandy soil in the dry zone grasslands, thickets and cultivated lands. 

Distimake cissoides[Syn: Merremia cissoides]

Native vine of tropical America. Introduced and naturalized in disturbed sites, cultivated grounds and roadsides. 

කලඳන/කලමරුවා[Kaladana/Kalamaruwa] (Ipomoea nil)

An introduced ornamental vine native to the America. Escaped and naturalized along roadsides, disturbed areas and scrublands, mostly in the wet zone. But also found near coast in the northern dry zone.

රත පඹ/රට පඹ/බඹු[Ratha Pamba/Rata Pamba/Bambu](Ipomoea quamoclit)

An introduced vine native to the tropical America. Widely cultivated in gardens as an ornamental and also escaped and naturalized in thickets and other disturbed sites. 

කිරි මදු/මහ මදු[Kiri Madu/Maha Madu] (Camonea umbellata [Syn: Merremia umbellata])

Common introduced vine found in thickets, forest edges, grasslands, roadsides and waste lands. It forms loose nets of vines on the ground across other vegetation.  

දිවි අඩිය/දිවි පහුර[Divi adiya/Divi pahura](Ipomoea pes-tigridis)

An indigenous vine occurs along roadsides, grasslands, cultivated grounds and disturbed places mainly in the dry low country. 

පොතු පලා[Pothu-pala] (Aniseia martinicensis)

Native vine with herbaceous stem of Central and South America. Introduced and naturalized in swampy areas, especially in paddy fields of southwestern lowlands. Leaves edible. 

Littlebell/Three-lobed Morning Glory (Ipomoea triloba)

An introduced and naturalized vine native to tropical America and West Indies. Very common in waste lands, paddy field margins, fences, etc. Due to its common occurrences near paddy fields, it is believed that Littlebell was introduced contaminant in seed rice. 

Railway Glory (Ipomoea cairica)

An indigenous vine occurs in waste lands, roadsides, stream banks, cultivated grounds, thickets and hedges. Also widely cultivated as an ornamental.  Original home of the plant is uncertain.

අග මුල නැති වැල් [Aga mula neti wel]/Golden Dodder/Field Dodder (Cuscuta campestris)

Introduced and naturalized parasitic leafless vine native to temperate and tropical North America. Common in paddy field margins, roadsides, railway tracks, waste grounds, etc. from sea level to about 1000 m a.s.l. on varies host plants (About 161 plants were observed by a study including rice*) . It is widely distributed in the dry lowlands.  Mikania cordata and Wedelia trilobata appear to be the primary host plants.

අග මුල නැති වැල්/Dodder (Cuscuta chinensis) 

Trimen H., 1895 and Austin, 1980 identified cuscuta spp. found in the low country as Cuscuta chinensis. Trimen in 1895 reported that it is very rare and only found in the suburbs of the Colombo parasitizing on grass, low herbs and shrubs. Austin in 1980 claimed that Cuscuta seeds may have been introduced to the country with imported rice from China. Base on a taxonomical study conducted on Cuscuta species found in the low country in 2004* it was revealed that most probably the above mentioned C. chinensis is an incorrect identification of Cuscuta campestris.

References:

*Jayasinghe C., Wijesundara D.S.A., Tennekoon K.U. & Marambe B. 2004, Cuscuta species in the lowlands of Sri Lanka, their host range and host - parasite association, Tropical Agricultural Research Vol. 16: 223-241 (2004)

Trimen H. 1895, Handbook to the Flora of Ceylon.

Austin D.F. 1980, Convolvulaceae. pp. 305-307, In: Dasanayaka, M.D. & Fosberg F.R.. Revised Hand Book to the Flora of Ceylon, Vol 1.

Scarlet African Morning Glory (Stictocardia macalusoi)

An introduced ornamental liana native to the southern Somalia. Flowers open at dawn and close near sunset. Cultivated in gardens. Stictocardia beraviensis (Hawaiian Sunset Vine/Hawaiian Bell/Braveheart Vine ) is a closely related species which is extremely hard to tell apart from this.

හීන් මදු/හවරි මදු/ආපසු මදු [Hawari-Madu/Heen-Madu/Apasu Madu] (Xenostegia tridentata [Syn: Merremia tridentata])

Common indigenous vine occurs in disturbed places, roadsides, grasslands, cultivated areas and rocky lands of  both dry and wet lowlands. Commoner in the dry zone. Flowering from April to June.

Ipomoea horsfalliae

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

කන්කුන්[Kan-Kun](Ipomoea aquatica)

Native plant of the old world tropics. It was introduced to Sri Lanka during some unknown period of the history probably from the Malaysia. Its Sinhalese name Kan-kun most probably derived from the Malaysian name Kangkung. It is common and naturalized along tank margins, canals, paddy fields margins and in stream beds in the dry zone. Also cultivated in moist sites in both wet and dry zone. Young stem and leaves edible.

කහ තැල් කොළ[Kaha Tel Kola]/Ivy woodrose(Merremia hederacea)

Common native twining or prostrating vine found in open areas, roadsides, grasslands, sandy places, etc in both wet and dry zones. Much common in the dry zone. 

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. 

Bush morning glory/Hedge glory/Shrub ipomoea (Ipomoea carnea)

Native shrub of tropical America.  Introduced as an ornamental and have been cultivating since 20th century. Also naturalized close to the human habitations. Flowering from August to September and probably in other months of the year. 

රස තැල් කොළ [Rasa Tel Kola] (Ipomoea sagittifolia [Syn: Ipomoea marginata/Ipomoea sepiaria])

Common indigenous vine found in swamp margins, river banks and moist disturbed sites, mainly in the dry zone.  Also occurs in the wet zone. Flowering from July to August

කිරි බදු [Kiri badu]/Giant potato(Ipomoea mauritiana)

An introduced vine with origin uncertain (Closest relatives are found in the West Indies and South America). Naturalized in lowland forests, riverine forests, secondary bushlands, cultivated field margins and savannas. Also encountered frequently near beaches and cultivated in home gardens. 

Evolvulus nummularius

A creeping herb native to tropical America. Introduced in 20th century and now naturalized and widespread along roadsides, grasslands and scrublands.