According to Bengal Plants –
i) pods hardly longer than pedicels = Nasturtium palustre DC. (now syn. of Rorippa palustris (L.) Besser)
ii) flowers without bracts = N. indicum DC. (now syn. of Rorippa indica (L.) Hiern)
iii) flowers with bracts – N. indicum var. benghalense (now syn. of Rorippa benghalensis (DC.) H. Hara)
.
Attaching images of Rorippa indica (L.) Hiern.
Species : Rorippa indica (L.) Hiern
H & H : wild herb of about 1 foot
Date : 6/5/12

Place : Hooghly


I have not seen it, but the third photograph shows bracts below flowers suggestive of R. benghalensis, although pedicels are not slender.

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=241000169


Thank you very much for the ID.
I was also hesitant, since illustrations of R. indica in FoP & FoC were a bit different.


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Rorippa indica (L.) Hiern from Assam KD )08 April 2015 : 5 posts by 3 authors. Attachments (4)
Attached images seem to be Rorippa indica (L.) Hiern. Please validate.  
Date :12.04.2015
Location: Assam
Family : Brassicaceae
Genus & species : Rorippa indica (L.) Hiern  (?)
Habitat: Grows wild on ditches

Habit :Herb


Hirsute nature, auriculate leaf, bracteate raceme suggest Rorippa benghalensis DC. (H. Hara)?


efi page on Rorippa benghalensis 


Presently I am unable to confirm anything, please check my latest upload

I only suggest that in addition to the points I have written earlier flowers of benghalensis are pale yellow while indica flowers are yellow (as per FoC).
Flora of British India (ah! old lit. again!) informs leaf-like bracts of benghalensis are shorter than pedicels.
I have confusion, yet I would select benghalensis  for this species.


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Rorippa sp. from Kamrup district, Assam : Attachments (7). 5 posts by 4 authors.
Attached images are Rorippa sp. collected from Kamrup district, Assam. I hope it may be Rorippa benghalensis (DC.) H. Hara. So please validate the ID.
Date :10.04.2013
Location: Kamrup district
Family : Brassicaceae
Genus & species: Rorippa sp
Habitat: Grows wild on waste place
Habit : Herb

Flower : Yellow in colour


efi page on Rorippa benghalensis


According to Bengal Plants –
i) pods hardly longer than pedicels = Nasturtium palustre DC.
ii) flowers without bracts = N. indicum DC.
iii) flowers with bracts – N. indicum var. benghalense
In addition to above Fl. Br. Ind. has –
iv) N. montanum Wall. = less robust than N. indicum, with smoother & less divided leaves, slender pods 1 to 1.5 inch (0.5 to 0.75 in. in N. indicum); can be found in Sikkim to Punjab. Khasia hills
v) N. officinale Br. = aquatic

As per efi thread:

According to Bengal Plants –
i) pods hardly longer than pedicels = Nasturtium palustre DC. (now syn. of Rorippa palustris (L.) Besser)
ii) flowers without bracts = N. indicum DC. (now syn. of Rorippa indica (L.) Hiern)
iii) flowers with bracts – N. indicum var. benghalense (now syn. of Rorippa benghalensis (DC.) H. Hara)

As the flowers appears to be with bracts, it should be Rorippa benghalensis (DC.) H. Hara


.
3 images.
A wild plant seen today (14.1.21).

Sisymbrium?


Cardamine


Rorippa palustris (L.) Besser ??


You’re right …


Looks different from Rorippa palustris


Looks like … ! Rorippa benghalensis (DC.) J.Hara



.

References:

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