Jasminum nobile C. B. Clarke subsp. rex (Dunn) P. S. Green, Kew Bull. 50:577. 1995 (Syn: (≡) Jasminum rex Dunn (basionym)) as per GRIN ; 

Cambodia; Laos; Myanmar; Thailand as per Catalogue of Life;
 
This creeper was taken at a resort in Kandy, Sri Lanka on the 17th of November, 2010. The size of the flowers was the biggest I have seen in Jasmines.


Perhaps Jasminum sambac (L.) Aiton


Jasminum most likely but not sambac!


Jasminum nervosum..thats what i think


Jasminum rex


Jasminum rex Dunn. is a synonym of Jasminum nobile CB Clarke


– I think this is Royal jasmine (Jasminum rex) which has pink buds, and large flowers which have overlapping petals, native to Thailand.    

http://toptropicals.com/catalog/uid/JASMINUM_REX.htm 
Jasminum rex Dunn is an accepted name. Jasminum nobile subsp. rex is its synonym.


 /wp-content/uploads/2020/10/BND%2079.JPG

BND 79 9/11/14 : 7 posts by 5 authors. Attachments (1)

Please ID this small herbaceous plant with white flowers. Photo was taken in Sri Lanka in March 2013


jasmine

i see small pinkish stalks peeking

pink jasmine?


Jasminum species in eFIoraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ efloras/ books etc., where ever available) 


Tri-nerved leaf is a key feature to arrive this species.
This most likely to be Jasminum nervosum Lour. More info is available in http://www.efloras.org/florataxon.aspx?flora_id=3&taxon_id=200017785

Next close one could be Jasminum subtriplinerve Blume.

Please see also archived entry in this group. efi thread


It could be Jasminum sambac.


Thanks, …, I think it’s more close to Jasminum nobile subsp. rex as per efloraofindia link given by you.  


SL 51 261113 : Attachments (1). 2 posts by 2 authors.
Please ID this ornamental climber with white flowers. Photo was taken in Sri Lanka in Oct 2012.



 

 
References: