Persicaria dichotoma

Indian Subcontinent to Nansei-shoto and W. & Central Malesia: Assam, Bangladesh, China Southeast, Hainan, India, Jawa, Laos, Malaya, Nansei-shoto, Philippines, Sri Lanka, Taiwan, Thailand, Vietnam as per POWO;
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This species is wide spread in south east Asia and also found in Australia. In India it is distributed in Maharashtra, Assam, Meghalaya, Madhya Pradesh, Tamil Nadu and Karnataka (Cook 1996, Kantachot et al. 2010).
It is perennial often found along rivers, in marshes and in seasonally inundated places including rice fields (Cook 1996).
(From  IUCN Red List (LC) (Persicaria dichotoma) on 8.1.14)
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Posting herewith some pictures of a plant which I think is Persicaria dichotoma, a new addition to our database. Expert comments are welcome.
Name: Persicaria dichotoma (Blume) Masam.
Family: Polygonaceae
DoC: 26 September 2014
Locality: Near Lingmala waterfall, Mahabaleshwar, Maharashtra

nice complete set of pictures

The Plant which you have uploaded is Persicaria minima

Thanks for your opinion on this plant. But I could not find the name Persicaria minima anywhere.
I wonder if it was a ‘typo’…or I am unaware of this species?.”
Waiting to hear from you. 

There is one Polygonum minimum S. Watson, but no distribution in India.

Polygonum minimum S. watson is growing in Himalayan regions but its nomenclature was changed as Persicaria minima by Harra in Flora of Eastern Himalaya later adopted by me while working with Prof. Harra on Flora of India revising family Polygonaceae

Could not find Persicaria minima on any available database though Fl. N. America still treats it as Polygonum minimum. Moreover, Polygonum minimum is characterized by having elliptic to ovate leaves and axillary inflorescence which is not the case here.
Would like to learn more from the experts.