Vallisneria natans

Vallisneria natans (Lour.) H.Hara, J. Jap. Bot. 49: 136 1974. (Syn: Physkium natans Lour.; Vallisneria asiatica Miki; Vallisneria biwaensis (Miki) Ohwi; Vallisneria densiserrulata (Makino) Makino; Vallisneria higoensis (Miki) Ohwi; Vallisneria minor Ito; Vallisneria physkium Juss. ex Spreng.; Vallisneria spiraloides Roxb.; Vallisneria subulispatha (Makino) Koidz. ..);

Assam; China North-Central; China South-Central; China Southeast; India; Iraq; Japan; Korea; Manchuria; Nansei-shoto; Nepal; Primorye; Taiwan; Vietnam as per Catalogue of Life;

Iraq, India to Russian Far East as per WCSP;

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Vallisneria natans (Lour.) Hara [Hydrocharitaceae]:
Name: Vallisneria natans (Lour.) Hara
Family: Hydrocharitaceae

Location Bhavanisagar dam; Erode dist., TN
Date: 08 Feb 2011

– You got the flowers too.

– .. the pedicels were spirally coiled and when straightened extends up to 20 cm

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ID required please..from Punjab, Pakistan : 9 posts by 2 authors. Attachments (7)
please identify the species of Vallisneria from stream of Shakargarh, Punjab, Lahore.

Thanks, …, Pl. check comparative images at
https://sites.google.com/site/efloraofindia/species/a–-l/h/hydrocharitaceae/vallisneria
What are the species reported from your area?

Thank you Sir. We have V.spiralis reported from Pakistan. It looks somehow different thats why need confirmation.

What about Vallisneria natans ?

It has been reported from Iraq, India to Russian Far East as per WCSP.

Thank you Sir Garg. I captured some more photographs recently, will send today.

Looks like V. natans to me.

Please take good quality photographs for pictorial identity. Is V. natans is a recomended species from your site of collection? Please consult relevant flora.