Thunbergia grandiflora Roxb., J. Bellenden Ker, Bot. Reg. 6: t. 495. 1820 (Hort. bengal. 45. 1814, nom. nud.); 
 
Bengal Clock Vine, Bengal Trumpet Vine, Blue Sky Flower, Blue Sky Vine, Blue Trumpet Vine • Hindi: नील लता Neel lata • Gujarati: Tumakhlung • Bengali: নীল লতা Neel lota • Assamese: Kukua loti • Mizo: Vakohrui, Zawngafian, Vako • Khasi: Jermi khnong, Syntiew jyrni chankhlaw;
 
Woody climber with broadly ovate often deeply cordate leaves, angular-toothed, 3-5 nerved; flowers in drooping racemes, on up to 5 cm long pedicels, corolla blue, soewhat 2-lipped.
 
Thunbergia grandiflora                                    Thunbergia laurifolia
Leaves ovate, to 20 cm long, angular toothed.   Leaves ovate-lanceolate, to 12 cm long
Leaf base cordate                                              Leaf based narrowed
pedicel 4-5 cm long                                          Pedicel 2 cm long 

 

 

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Thunbergia grandiflora (Roxb. ex Rottl.) Roxb., Bot. Reg. 6: , pl. 495 1820.
syn: Flemingia grandiflora Roxb. ex Rottl.
Woody climber with broadly ovate often deeply cordate leaves, angular-toothed, 3-5 nerved; flowers in drooping racemes, on up to 5 cm long pedicels, corolla blue, soewhat 2-lipped.
Photographed from DU, Delhi
Common names: Blue trumpet vine, Bengal clock vine, sky vine


  
Acanthaceae Week: Thunbergia grandiflora from Delhi: Thunbergia grandiflora (Roxb. ex Rottl.) Roxb., Bot. Reg. 6: , pl. 495 1820. syn: Flemingia grandiflora Roxb. ex Rottl.
Woody climber with broadly ovate often deeply cordate leaves, angular-toothed, 3-5 nerved; flowers in drooping racemes, on up to 5 cm long pedicels, corolla blue, soewhat 2-lipped.  
Photographed from DU, Delhi 
Common names: Blue trumpet vine, Bengal clock vine, sky vine.  
The plant though closely related to T. laurifolia is treated as synonym of T. alata in Kew Plant List and perhaps in Schonenberger, J. 1999. Floral structure, development and diversity in Thunbergia (Acanthaceae). Bot. J. Linn. Soc. <http://www.tropicos.org/Publication/1172> 130: 1–36. Final comments can be made only after seeing this paper. 
  

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Convolvulaceae member from Assam KD 01 Feb 2017 : 6 posts by 4 authors. Attachments (8)
Attached images are unknown species. Please ID the sp. 
Date :08.12.2016
Location: Assam
Family : Convolvulaceae
Genus & species : ??
Habitat: Grows wild on hilly area
Habit : Climber  
Flower : Large, white


I am inclined more towards Thunbergia sp.


Yes, the fruits suggest Thunbergia.
Please compare with Thunbergia species in eFI.


Thanks, … I think close to images of Thunbergia grandiflora Roxb.


 

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SK4890 30 APR-2017:ID : 6 posts by 3 authors. Attachments (6)
Location: Soureni, Mirik, India
Date: 22 April 2017
Altitude: 2000ft. 

Looks like some Thunbergia sp. (Acanthaceae).
Thunbergia in eFI.


I guess it could be Thunbergia grandiflora (Roxb. ex Rottl.) Roxb. (accepted name)  

Habitat

T. grandiflora can be found growing in moist areas from sea level to middle elevations. It is especially common in disturbed areas, urban forests near human settlements, riparian forests, forest gaps, forest edges and along roadsides (ISGG, 2012; PIER, 2012). In Australia, this species has been reported growing in areas from sea level to 750 metres in riparian areas, rainforest margins, roadsides, disturbed sites and old gardens (Queensland Department of Primary Industries and Fisheries, 2007). In Hawaii, T. grandiflora grows in lowland moist areas, disturbed forests, and urban areas (Starr et al., 2003). Please validate.


I also feel it is closer to images at Thunbergia grandiflora Roxb. as per comparative images at Thunbergia


Nepali Names : काग चुच्चे  Kaagchuchche / काग फुली Kagphulee 

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SK723 25 AUG-2017:ID : 4 posts by 2 authors. Attachments (6)
Location: Kathandu, Nepal
Altitude: 4400 ft.

Date: 07 JUne 2017

Thunbergia ???

I also think so. Pl. check comparative images at genera page in efi site. 


Pl. check comparative images at 


I hope new comers will learn from your posts. How to do homework before posting it on Eflora.

Nice Pictures. A similar plant is growing on fence in village Tala Umaria M.P. I will check when it flowers.


yes … grows at the hort and elliot park on chowringhee and many places in and around the canals in shyambazar etc… saw them during the whirlwind durgapuja pandal hopping a couple of years ago….
your second question I think is the Thunbergia alata… its well accepted that thunbergia alata is a distinctly different species… it had different structure of flowers and leaf…
I am enclosing a picture here, from NYBG where plants are displayed with labels once it s classified by their botanists and horticulturists team… I value their opinion above any website for sure…
this was labelled a t. alata orange flowers… did not photograph the label because I have my self had been growing the typical Yellow flowered t. alata vine for many many years as part of my nostalgia of India garden… t. alata is south african origin as far as I know.. ..yet my Grandma’s garden on the east coast or the west coast always had them almost growing like wild … this link shows both colors….
http://www.plantzafrica.com/planttuv/thunbergalata.htm
To confuse the issue its also called black eyed susan by some areas of the english speaking world including popular name in seed catalogues and popular flower for cutflower trade in USA and europe and now grows wild in the meadows all over…and by the roadsides ….this Black eyed susan is Rudbeckia hirta of Aster family… http://www.fcps.edu/islandcreekes/ecology/black-eyed_susan.htm
ecologically an important plant, its considered so at least in the USA you’ll see that in the site above…..


I said yes to the plant being T. grandiflora without reading your first line about KEW The Plant List listing.
Having gone through the Plant List, with so many missing names, unresolved names, and many wrong synonymy records, I have become increasingly unsure about The Plant List.
I prefer to follow GRIN for records which are dealt there and periodically updated by its scientists. GRIN as well as several recent treatments recognise T. grandiflora. as distinct species.
Yes … is right, T. alata is a sufficiently distinct from T. grandiflora, and to call T. grandiflora its synonym at least I find hard to digest.
If there is any species closest and can be combined with is T. laurifolia. The two are very close.


 

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Request flower ID (x-10) : Attachments (1).  3 posts by 3 authors.

Requesting id of this flower (picture taken at Kaas in late Sep, 2012).


Thunbergia grandiflora 


This appears to be ornamental and can’t be seen on Kaas plateau. 

Please mention clear location/ size of the flower habit/habitat etc ………………..


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Thunbergia grandiflora (Roxb. ex Rottl.) Roxb. Bot. Reg. 6: 6 1820; Bailey, Man. Cult. Pl.700. 1924; Gaur, Fl. District Garhwal 518. 1999; Chowdhery and Pandey, Pl. Indian Bot. Gard. 478. 2007.

Flowering and Fruiting: June – August 
Attachments (4)

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Acanthaceae Fortnight::Thunbergia grandiflora::NSJ-08 : 3 posts by 2 authors. Attachments (2)

Thunbergia grandiflora Photo taken at Goa (May-06)


Fwd: The Bengal clockvine : 2 posts by 2 authors.
Please check the link for my latest article in ‘Star of Mysore’ :


Wonderfully written and presented, … We are proud to have you among us.  


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Fwd: THUNBERGIA GRANDIFLORA / THUNBERGIA GRANDIFLORA ALBA : 3 posts by 2 authors. Attachments (1)

Attaching a collage of Thunbergia grandiflora along with Thunbergia grandiflora alba.

very nice … but wrong picture


the attached image was a wrong one. Attaching the correct one.
Attachments (1)

 

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SK1724 14 Jan 2019 : 4 posts by 2 authors. Attachments (2) – 3 mb each.
Location : Sentosa, Singapore
Date : 18 October 2012
Altitude  131 m.
Habit : Cultivated
Thunbergia grandiflora ‘Alba’ ???


Attachments (1) – 3 mb.

To me also appears close to images at 




 

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Thunbergia grandiflora ‘Alba’;


 
 

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Fwd: SYMBIOSIS : 975 : 1 post by 1 author. Attachments (1)
Attaching a collage of Bumble bee visiting flowers of Thunbergia grandiflora.

 

 

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Fwd: COLOUR FROM NATURE ( THUNBERGIA GRANDIFLORA ) : 1 post by 1 author. Attachments (1)
In the attached collage the background colour is taken from the colour of the flower itself.

With careful observation you will find two small spots in the flower. You got it, the background is composed of this colour.
NATURE IS WONDERFUL.

 

 

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Fwd: THUNBERGIA GRANDIFLORA : 1 post by 1 author. Attachments (1)
Attaching a collage of Thunbergia grandiflora.

References:

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