Strobilanthes hirta

Strobilanthes hirta (Vahl) Blume (syn: Hemigraphis hirta T.Anderson; Ruellia hirta Vahl)
(since all allied genera of Strobilanthes are no longer recognized, H. Hirta is also reinstated to its earlier valid name under Strobilanthes as S. hirta)

Hemigraphis hirta (Vahl) T.Anderson, J. Linn. Soc., Bot. 9: 462 1867. (syn. Ruellia hirta Vahl) as per The Plant List Ver. 1.1 ;

India (throughout), Bengal, Nepal, Bangladesh as per Catalogue of Life;

Hairy Hemigraphis;

Alternanthera pungens
Sonepat, Haryana, 25th April 2009. 
I don't think it's Alternanthera pungens. It's different from the species you posted earlier.
It's better if you put a ? in the subject line, if in doubt yourself.
I have a doubt, because the first photo (a) is look like some Acanthaceae (Dipterocanthus sp.??). And other two photos with hairs???
Need to confirm once again.
Its Hemigraphis hirta (Acanthaceae). I can mail the pictures if ones interested in confirming.
Thanks, ... Links for Hemigraphis hirta: (Desc. from a book called Plants and people of Nepal By Sanjay Manandhar), (syn. from FON),
(Desc. from 'Aquatic and semi-aquatic plants of the lower Ganga delta' By Kumudranjan Naskar)
here are the pictures of what i think is hemigraphis hirta.  Attachments (2)
button sized flower from Hooghly (WB) 31-03-12 SK-3:
This is a wild herb of less than 1 ft and bearing button sized flower.
Species : UNKNOWN
Habit & Habitat : small wild herb in uncultivated grassy land, also on roadside
Date : 15-03-12, 8.30 a.m.
Place : Nalikul (Hooghly), WB
could not find any genus with such name "Gentelbua". Any error in spelling ?
To me the posted plant looks like some species of Strobilanthes OR Hemigraphis - just a guess.
Could be Hemigraphis hirta , Acanthaceae.
It is a very common plant in the southern part of West Bengal. It is Hemigraphis herta of Acanthaceae. It is one interesting plant.
When its fruits will ripe, village children will through those in water and the fruits will then burst like miniature crackers!!
You mean Hemigraphis hirta ? There are some more Acanthaceae members where the dried pods burst like miniature crackers when come in contact with water, I remember my childhood days when I use to enjoy these crackers by putting them in mouth.

Sorry for interrupt your discussion but according to photograph you posted here plant sp. look more alike Hemigraphis elegans Nees. var. crenata (Syn. Hemigraphis crenata (Bth. ex Hohenack)  
according to feature
1) in pic stem looks squarish (subquadrangular), viscidly pubescent  
2) Leaves subobtuse, crenate, hairy, base shortly cuneate  
3) Bracts are longer than calyx  
4) corolla tube whitish, limbs blue (here light to dark shade but in pic not pure white and blue)
5) Longer filaments of the stamens bearded in the upper part (when zoom in pic hairyness seen). Please correct me if characters i seen in pics are wrong. and last for confirmation the species (if u have specimen) seeds densely clothed with hygroscopic white hairs. 
It would be wonderful if this species gets identified as H. elegans Nees var. crenata. I do not know if the same can be found in West Bengal. One book says the species is endemic to Peninsular India. Hohenacker herbarium at KEW shows corolla tube non-ventricose, I think.
Attached here pictures of highest resolution I have retained with me. I do not have specimen, I do not belong to botany community.
Attachments (3)

A new set of this species, recorded today, flowering season has just started, only a few flowering now. I still have originals, please feel free if you need the originals.
Attachments (6)
Herb for Id from Panipat- NS 2011: (8 images) This prostrate herb was shot from Panipat from a canal bank... tentatively identified by me as Dipteracanthus prostratus... 
I want to be sure... the reason to doubt my id is the upload of Ruellia prostrata Syn. Dipteracanthus prostratus by ... from Morni Hills.. as per the link..
Please help to identitfy...
For me, it is D.prostratus var parvifolius Nees. Pl check it
Thanks ... for the inputs... could not find any link to check the var. parvifolius... hope you can help..
To me it appears closest to Hemigraphis hirta (Vahl) T.Anderson (Acanthaceae).
Sorry for the wrong identity. Supporting ... Kindly see the specimen link
Thanks ... and ... for identification... quite convincing...

All Please id the attached plant pictures.
2459: Herb, Flowering: March: Pain Land
It could be Hemigraphis crenata
Hemigraphis hirta from Uttarakhand: May 2014 DSR_3 : 1 post by 1 author. Attachments (2).
Hemigraphis hirta (Vahl) T.Anderson (Acanthaceae) is a common creeping herb in Pantnagar.
Flowers last for few hours only in this species.
Herb Id from Bangladesh SM043 : 3 posts by 3 authors. Attachments (2).
Acanthaceae ?
Habit: Herb
Habitat:  Plain land
Location: Satkhira
Flowering: March
Should be in Hemigraphis genus; H. hirta/ H.urens.
Thanks, ...,
It appears like Hairy Hemigraphis (H.hirta).

Hemigraphis species, please check KEY in Bengal Plants.
Hemigraphis hirta
..., Have you any PDF copy of Bengal Plants and the Book
Trees of The World
V-1,2, by TK Bose, P Das, G.G Matiti
Regional Plant Resources  Center,Bhubaneswar-751015, Orissa, INDIA
Yes, I also think so.
..., two volumes of 'Bengal Plants' are big files- Gmail won't allow such large attachments. Please download it from -

Hemigraphis hirta T. Anderson.
This prostrate herb was recorded from Panipat...
I was resolved as Hemigraphis hirta.. please validate/correct..
I think id is correct.

Strobilanthes : No images.
Sir. You do a wonderful job. In your Strobilanthes page where you have dealt with name changes in Hemigraphis..    hirta (Vahl.) T. Anderson (Syn. of Strobilanthes hirta (Vahl) Blume in view of New Names and Combinations in Indian Acanthaceae by John R. I. Wood- Novon: A Journal for Botanical Nomenclature 23(3):385-395. 2014)
This reference of JRI Wood need not there because it's not a new combination nor be has talked about S. hirta there.. or you can add one more sentence for clarity.. since all allied genera of Strobilanthes are no longer recognized, H. Hirta is also reinstated to its earlier valid name under Strobilanthes as S. hirta.
New Names and Combinations in Indian Acanthaceae by John R. I. Wood- Novon: A Journal for Botanical Nomenclature 23(3):385-395. 2014