Aquatic species DB 6

[J.M. Garg]

---------- Forwarded message ---------
From: Dipankar Borah <dipankar...@gmail.com>
Date: Tue, 17 Dec 2019 at 09:45
Subject: Re: Aquatic species
To: J.M. Garg <jmg...@gmail.com>

Identity requested

Location: Assam

Date: 20.9.19

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J.M.Garg

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[ashutoshsharma11sn]

Potamogeton species
Family - Potamogetonaceae

Best regards
Ashutosh Sharma

[J.M. Garg]

Tanks, Ashutosh ji.

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[J.M. Garg]

On Wed, 18 Dec 2019 at 09:48, Dipankar Borah <dipankar...@gmail.com> wrote:

Seems near

P.nodosus.

And thanks Ashutosh

[J.M. Garg]

Close to Potamogeton perfoliatus (flowering and fruiting stage is needed for identification) as per reply by Subir ji in another thread.

[J.M. Garg]

To me looks different from Potamogeton nodosus as per images and details herein.

Also looks different from Potamogeton perfoliatus as per

https://gobotany.nativeplanttrust.org/species/potamogeton/perfoliatus/

https://en.wikipedia.org/wiki/Potamogeton_perfoliatus

https://plants.ifas.ufl.edu/plant-directory/potamogeton-perfoliatus/
https://plants.usda.gov/core/profile?symbol=POPE7

---------- Forwarded message ---------
From: J.M. Garg <jmg...@gmail.com>
Date: Tue, 17 Dec 2019 at 15:07
Subject: Aquatic species DB 6
To: efloraofindia <indian...@googlegroups.com>
Cc: dipankar borah <dipankar...@gmail.com>

[Gurcharan Singh]

Forwarding for ID

Distributed as  Potamogeton species- Assam 

P. perfoliatus would have all submerged leaves, to me it looks like P. natans

Group discussion at

  Aquatic species DB 6 (google.com)  

[Gurcharan Singh]

Forwarding for ID

Distributed as  Potamogeton species- Assam 

P. perfoliatus would have all submerged leaves, to me it looks like P. natans

Group discussion at

  Aquatic species DB 6 (google.com)  

---------- Forwarded message ---------
From: JM Garg <jmg...@gmail.com>
Date: Tuesday, December 17, 2019 at 3:08:34 PM UTC+5:30
Subject: Aquatic species DB 6
To: efloraofindia <indian...@googlegroups.com>

Cc: dipankarborah085 <dipankar...@gmail.com>

[Saroj Kumar Kasaju]

Nepali Name : पानी झार Paanee Jhaar 

Thank you

Saroj Kasaju

[Prof. Dr. Santhosh Kumar Rajamani]

Hello

Potamogeton perfoliatus (clasping leaf Potamogeton) has leaves arranged clasping the stems and there are no floating leaves, permanently submerged macrophyte. This seems to Potamogeton Natans or maybe (excuse me if I am wrong) Aponogeton natans (please look for bulb/onions absence of which rules out Aponogeton). I doubt Aponogeton as they have spoon shaped, rounded floating leaves.

Prof. Santhosh Kumar Rajamani 

[Saroj Kumar Kasaju]

I guess this is Potamogeton octandrus Poir.

https://indiaflora-ces.iisc.ac.in/herbsheet.php?id=9543&cat=13

https://www.google.com/url?sa=t&source=web&rct=j&url=https%3A%2F%2Fwww.knowyourweeds.com%2Fen%2Fweeds%2FPotamogeton_octandrus&ved=0CBYQjRxqFwoTCOD43LuC_JEDFQAAAAAdAAAAABAI&opi=89978449

Thank you

Saroj Kasaju

---------- Forwarded message ---------
From: Prof Santhosh Rajamani <minerv...@gmail.com>
Date: Wednesday, October 16, 2024 at 3:35:06 PM UTC+5:45
Subject: Aquatic species DB 6

To: Efloraofindia <indian...@googlegroups.com>

[Prof. Dr. Santhosh Kumar Rajamani]

Finally found the ID of this unique aquatic plants.. i thought it was Potamogeton coloratus compared to online images, but coloratus is a temperate aquatic macrophyte restricted to calcareous peatland waters of Europe and adjacent regions and is not part of the native or naturalized aquatic flora of India. Plus i don't think peat filled ponds are found in India due to higher temperatures and increased microbial Activity.

Regards 

Prof  Dr Santhosh Kumar Rajamani 

Aquatic plants enthusiast 

[Saroj Kumar Kasaju]

Is ID correct ?

Thank you

Saroj Kasaju

---------- Forwarded message ---------
From: Prof Santhosh Rajamani <minerv...@gmail.com>
Date: Friday, January 9, 2026 at 3:54:29 PM UTC+5:45
Subject: Aquatic species DB 6
To: Efloraofindia <indian...@googlegroups.com>

[Prof. Dr. Santhosh Kumar Rajamani]

Honestly I don't know!

 I could not find any ideas.. personally this species seems to be on decline due to habitat loss...

Regards