Commelina appendiculata C.B.Clarke, Commelyn. Cyrtandr. Bengal. t. 13 1874. (Syn: Commelina alba Buch.-Ham. ex C.B.Clarke);

Clarke Comm. & Cyrt. Beng. 13 ; Monogr. 186 ; leaves sessile linear or linear-lanceolate, spathes very long-peduncled lanceolate deeply cordate complicate, seeds oblong smooth appendaged at both ends, or in the dorsal cell smaller or 0. C. communis var. acuminata, Wall. Cat. 8978 K. C. alba, Ham. mss.—Commelina, sp. 4, Herb. 

Ind. Or. Hf. & T. NORTHERN BENGAL, Hamilton ; MYMENSINGH, Clarke. SIKKIM HIMALAYA ; foot of the hills, J. D. H., Clarke. SILHET, Clarke. CEYLON, Macrae, &c.  
Diffusely branched, 1-3 ft. high. Leaves 4-6 by 1/6-2/3 in., narrowed at both ends, nearly glabrous. Spathes 2-3 in., glabrous without, hairy within, striate, caudate- acuminate, base cordate ; raceme 2-fid. Petals blue or white. Capsule 2- or 3-celled (the dorsal often 0). Seeds somewhat flattened, nearly black, appendages conical. Sect. 6. SPATHODITHYROS. Capsule 2-celled. (See also C. appendiculata.)  
(From The Flora of British India (1892) from IBIS Flora)


Image by Sourav Mahmud 


3 species of Commelina ID from Bangladesh SM 178 (mixed thread): 4 posts by 4 authors. Attachments (3)

Habit: Herb
Habitat Wild

Need more details to identify it correctly, 
For time being I can say first image is apparently look likes Commelina paludosa and third one is possibly C. appendiculata, I can’t able to trace ID of your 2nd Image. If few other views and details you are having then it will help little to ID. 




MS Nov.,2017/04 Commelina sp. for ID : 5 posts by 3 authors. Attachments (1)

Location : Sailam (Mizoram)
Date : 14-10-2017
Habit : Herb
Habitat : Wild

Can you post clear image of the leaves and side view of the flower?  

Sorry !! no sir. C.benghalensis

Thank you for forwarding … 

…, It’s very difficult to ID with a front view photograph. If you have any lateral view or any other pictures you are having please post. 
Anyway, it appears to be Commelina appendiculata. 



The Plant List Ver.1.1  WCSP  e-monocot  India Biodiversity Portal (Observation)  IBIS Flora  A Revised Handbook of the Flora of Ceylon -, Volume 14 edited by M. D. Dassanayake, W. D. Clayton  (2000- Details with keys)