[efloraofindia:35786] Polypetalae for id 240510MK2

[Muthu Karthick]

Dear all,

Please help to id this soft shrub found in the river shore.

Date/Time-	02-05-2010 / 09:00 AM
Location- Place, Altitude, GPS-	Mudumalai WLS; 600 msl; TN
Habitat- Garden/ Urban/ Wild/ Type-	Riparian
Plant Habit-	shrub
Height/Length-	Up to 1metre
Leaves Type/ Shape/ Size-	6 x 3cm; hairy
Inflorescence Type/ Size-	single flower
Flowers Size/ Colour/ Calyx/ Bracts-	yellow
Fruits Type/ Shape/ Size Seeds-
Other Information like Fragrance, Pollinator, Uses etc.-	spongy roots observed found floating just beneath the water surface, where rock is the substrate
-- Muthu Karthick, N Junior Research Fellow Care Earth Trust Chennai - 61 www.careearthtrust.org

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[Muthu Karthick]

Could this be Ludwigia octovalvis (Jacq.) Raven of Onagraceae?

Flowers 2 - 3cm across.

[Dinesh Valke]

... the flower size seems to be on larger side for L. octovalvis ... have seen them to be about 7 - 12 mm .... not sure about variable size.
Let us wait for comment(s).

Regards.

[Gurcharan Singh]

Dinesh ji

Petals could be up to 17 mm long and up to 17 mm broad according to Flora of China.

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Dr. Gurcharan Singh
Retired  Associate Professor
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[tanay bose]

Ludwigia octovalvis indeed commonly knon as " Ban Lavanga" from Onagraceae profusely found in Pachmari region of M.P. A similar Plant is found in waste land of Bengal, It is has a smaller size flower rest looks very similar known as Jussiaea suffruticosa L.
Regards
Tanay

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[Dinesh Valke]

Thank you Gurcharan ji for clarity on flower size ... thus, it does seem to me L. octovalvis ... commonly known as: false primrose, Mexican primrose willow, swamp primrose, water primrose, willow primrose, yellow willow herb • Marathi: पानलवंग panlavang • Sanskrit: भूलवंग bhulavangah • Telugu: నిరుఅగ్నివేండ్రపాకు neeru-agnivendrapaku

... origin / nativity obscure; probably Micronesia, pan-tropically distributed.

[Neil Soares]

Hi,   This does not look like Ludwigia octovalvis [L.parviflora]. Will send photographs of L. octovalvis for comparison later if required.                    With regards,                      Neil Soares. --- On Mon, 5/24/10, Dinesh Valke <dinesh...@gmail.com> wrote:

[J.M. Garg]

Forwarding again for Id confirmation or otherwise pl.

Earlier relevant feedback:

“... the flower size seems to be on larger side for L. octovalvis ... have seen them to be about 7 - 12 mm .... not sure about variable size.
Let us wait for comment(s).”

 

“Petals could be up to 17 mm long and up to 17 mm broad according to Flora of China.

--
Dr. Gurcharan Singh”

 

“Ludwigia octovalvis indeed commonly knon as " Ban Lavanga" from Onagraceae profusely found in Pachmari region of M.P. A similar Plant is found in waste land of Bengal, It is has a smaller size flower rest looks very similar known as Jussiaea suffruticosa L.
Regards
Tanay”

"This does not look like Ludwigia octovalvis [L.parviflora]. Will send photographs of L. octovalvis for comparison later if required.
                   With regards,
                     Neil Soares."

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Image Resource of more than a thousand species of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise): http://commons.wikimedia.org/wiki/Category:J.M.Garg
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[J.M. Garg]

Forwarding again for Id confirmation or otherwise pl.
Earlier relevant feedback:
“... the flower size seems to be on larger side for L. octovalvis ... have seen them to be about 7 - 12 mm .... not sure about variable size.

Let us wait for comment(s).” from Dinesh ji.

 
“Petals could be up to 17 mm long and up to 17 mm broad according to Flora of China.
--
Dr. Gurcharan Singh”
 
“Ludwigia octovalvis indeed commonly knon as " Ban Lavanga" from Onagraceae profusely found in Pachmari region of M.P. A similar Plant is found in waste land of Bengal, It is has a smaller size flower rest looks very similar known as Jussiaea suffruticosa L.
Regards
Tanay”

"This does not look like Ludwigia octovalvis [L.parviflora]. Will send photographs of L. octovalvis for comparison later if required.
                   With regards,
                     Neil Soares."

---------- Forwarded message ----------
From: Muthu Karthick <nmk...@gmail.com>
Date: 24 May 2010 15:50
Subject: [efloraofindia:35786] Polypetalae for id 240510MK2
To: indiantreepix <indian...@googlegroups.com>

[J.M. Garg]

A reply:

"It is Ludwigia peruviana (L.) H. Hara, (syn:Jussiaea peruviana L., Sp. Pl. 388. 1753. = Jussiaea speciosa Ridley, J. Bot. 59. 1921)

It is a weed, originally came from america
kunhikannan"

[Muthu Karthick]

Dear all,

For me also this looks more like Ludwigia peruviana (L.) Hara of Onagraceae owing to the presence of Hirsute plant body.

Dear Neilji, could you please upload pictures of L. octovalvis for comparison purpose?

[Neil Soares]

Hi Muthu,   As requested.                   Regards,                    Neil Soares. --- On Mon, 6/21/10, Muthu Karthick <nmk...@gmail.com> wrote:

[Muthu Karthick]

Many thanks Neilji, does this have deciduous bracteoles?

Nice Picture/

[Neil Soares]

Hi Muthu,  Not sure. Will check.

[Muthu Karthick]

More images of Ludwigia peruviana http://tropicos.org/Image/100139732

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Muthu Karthick, N
Care Earth Trust

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