You are right about the publications Garg ji. I must say I am surprised 
with this. To me the lower sepal of the two look different.  In the 
original paper describing Impatiens roingensis, the authors did compare it 
with Impatiens arguta. However, I am no expert on these matters.
   Best wishes
   Tabish

On Wednesday, September 14, 2022 at 8:50:36 PM UTC+5:30 JM Garg wrote:

> Thanks, Tabish ji.
> But the authors themselves and Dr. Gogoi (subsequent publications as per 
> references in POWO 
> <https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:373962-1>) 
> think it to be a syn. of *I.arguta*. 
>
> On Wed, 14 Sept 2022 at 20:36, Tabish <[email protected]> wrote:
>
>> I think *Impatiens roingensis* and *Impatiens arguta *are reasonably 
>> distinct. *Impatiens arguta *has a wide distribution, China 
>> South-Central, East Himalaya, Myanmar, Nepal, Tibet. *Impatiens 
>> roingensis* on the other hand is restricted to Dibang valley. I think 
>> the plant here is *Impatiens roingensis. *When we found *Impatiens 
>> roingensis *in Dibang valley, it never occurred to us at all that it 
>> could be confused with *Impatiens arguta. *
>>    Tabish
>> -------------------------------------------
>> <http://www.flowersofindia.net>www.flowersofindia.net
>> The waterhole of flower lovers
>>
>>
>> On Wed, Sep 14, 2022 at 4:54 PM J.M. Garg <[email protected]> wrote:
>>
>>> May I request the authors and others, who published subsequently to tell 
>>> whether to treat this as *Impatiens roingensis* Hareesh, A.Joe & M.Sabu 
>>> or as syn. of *Impatiens arguta* (as followed by POWO 
>>> <https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:373962-1>).
>>>
>>> ---------- Forwarded message ---------
>>> From: Dhyey shah <[email protected]>
>>> Date: Wed, 7 Sept 2022 at 18:45
>>> Subject: [efloraofindia:432242] Identification help for Impatiens sp.
>>> To: eFloraofIndia <[email protected]>
>>>
>>>
>>> Hello! 
>>> I am a new member of the group and this is my first post for ID help. 
>>> Hope all the details are present. 
>>> Location: Lower Dibang Valley, Arunachal Pradesh
>>> Date: 22nd May 2022
>>>
>>> Thanks in advance!
>>>
>>> Dhyey Shah[image: DSC_5018.JPG] 
>>>
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>>> .
>>>
>>>
>>> -- 
>>> With regards,
>>> J.M.Garg
>>>
>>
>
> -- 
> With regards,
> J.M.Garg
>

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