.
Trop. & Subtrop. Asia to N. Australia as per WCSP;
.
Native to: Afghanistan, Andaman Is., Assam, Bangladesh, Borneo, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Korea, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nansei-shoto, Nepal, New Guinea, Northern Territory, Pakistan, Philippines, Primorye, Queensland, Sulawesi, Sumatera, Thailand, Vietnam, Western Australia;
Introduced into: California, Fiji, Hawaii as per POWO;
.
mon-oh-KOR-ee-a — Greek: monos (one); chori (separate, apart) … Dave’s Botanary
vaj-in-AL-iss — with a sheathDave’s Botanary
.
commonly known as: heartshape false pickerelweed, marshy betelvine, oval-leafed pondweedAssamese: ভাতমেটেকা bhat meteka, জোনাকী ফুল jonaki phulBengali: ছোটনখা chotanakha, পানি কচু panee kachuHindi: ननका nanka, पानपत्ता paanpattaKannada: ನೀಲೋತ್ಪಲ neelotpalaKonkani: नीलोत्पल nilotpalaMalayalam: കാക്കപ്പോള kakkappola, കരിങ്കൂവളം karinkuvalam, കുളച്ചേമ്പ് kulachempu, കുവലയം kuvalayamMarathi: नीलोत्पल nilotpalaSanskrit: इन्दिवर indivaraTamil: கருங்குவளை karu-n-kuvalaiTelugu: నీరు కాచ neerukaacha, నీరుకాంచ nirokanchaTulu: ನೀರ್ ಚೇವು neerchevu  
.
.
The leaves are 15-20 cm long, hastate; the flowers are on long pedicels. In M. vaginalis the leaves are 10 cm, ovate-cordate and flowers are sub-spicate.
Besides flowers, perianth segments of withered flowers are seen twisted around the fruit in a cork screw manner. This is another character of M. hastata compared to M. vaginalis.
.

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Monochoria vaginalis from the way to Chennai: This was in a empty water logged rice field

– Very common plants along borders of rice plant fields in Kashmir.



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Flora of Haryana: Monochoria vaginalis from Amin (Kurukshetra):
Monochoria vaginalis from Amin (Kurukshetra)
pls validate


When it’s flower opens.


This we could not observe … as this was a very short visit there. Pics were taken on 06-10-11



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Aquatic Herb for ID: Habit : Aquatic Herb

Location: Shahapur – Gulbarga district
Date of Picture taken :26.08.2011


Monochoria vaginalis of Pontederiaceae.


Yes it is Monochoria sp. What is difference between M.hastata and M.vaginalis?



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Monochoria vaginalis:
sharing picture of Monochoria vaginalis (Burm.f.) C.Presl Family : Pontederiaceae
I have found this beautiful herb growing on moist soil in post harvested rice field
i love its blue flowers


Gorgeous Catch. I have yet to come across this.Thanks for shring. Nice colour and texture of the flowers.


Thank you …. yeah flowers are really very beay beauutiful
you can see them growing in moist places ..very common plant flowering in October – November months 🙂



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Requesting to please ID this plant in a nursery in Lonavala, Maharashtra in October 2013.
Unfortunately, this is the only pic I have, is this enough to ID?

Monochoria vaginalis (Burm.f.) C.Presl (Pontederiaceae)


This is possibly Monocharia hastata.


Monochoria vaginalis Presl., a weed in watery areas


How does one distinguish between Monochoria hastata and Monochoria vaginalis?



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ANDEC17 Please confirm if this can be Monochoria hastata : 4 posts by 3 authors. Attachments (6).
Ramadevarabetta, Karnataka
7th December 2014


Monochoria vaginalis


Yes Monochoria vaginalisPontederiaceae. I had grown this plant in the periphery of a pond inhabiting yellow lotus in the Herbal Garden of DR.Y S Parmar University of Horticulture & Forestry, Nauni, Solan, HP. It has medicinal properties.



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Flower for ID. (mixed thread): Attachments (1). 1 correct image as above.
Kindly identify this flower – shot at a rice farm in Pattambi, Kerala – June 2010.


this is Monochoria vaginalis, i think.


Monochoria vaginalis (Burm. f.) C.Presl ex Kunth (1834) [Pontederiaceae]



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along KSH 34 between Ramnagar & Malamba :: Monochoria vaginalis :: DVFEB39/72 : 3 posts by 2 authors. 4 images.
along Karnataka State Highway No. 34 between Ramnagar & Malamba
Date: 29 MAY 2011 Altitude: about 640 m asl
Monochoria vaginalis (Burm.f.) C.Presl (family: Pontederiaceae)



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via Species‎ > ‎M‎ > Monochoria vaginalis (Burm.f.) C.Presl … family: Pontederiaceae

Flowers of India Discussions at efloraofindia more views in flickr more views on Google Earth
mon-oh-KOR-ee-a — Greek: monos (one); chori (separate, apart)Dave’s Botanary
vaj-in-AL-iss — with a sheathDave’s Botanary
commonly known as: heartshape false pickerelweed, marshy betelvine, oval-leafed pondweedAssamese: ভাতমেটেকা bhat meteka, জোনাকী ফুল jonaki phulBengali: ছোটনখা chotanakha, পানি কচু panee kachuHindi: ननका nanka, पानपत्ता paanpattaKannada: ನೀಲೋತ್ಪಲ neelotpalaKonkani: नीलोत्पल nilotpalaMalayalam: കാക്കപ്പോള kakkappola, കരിങ്കൂവളം karinkuvalam, കുളച്ചേമ്പ് kulachempu, കുവലയം kuvalayamMarathi: नीलोत्पल nilotpalaSanskrit: इन्दिवर indivaraTamil: கருங்குவளை karu-n-kuvalaiTelugu: నీరు కాచ neerukaacha, నీరుకాంచ nirokanchaTulu: ನೀರ್ ಚೇವು neerchevu
botanical names: Monochoria vaginalis (Burm.f.) C.Presl … synonyms: Boottia mairei H.Lév. • Gomphima vaginalis (Burm.f.) Raf. • Pontederia vaginalis Burm.f. … status at The Plants List (2013). Version 1.1.
August 29, 2009, Thane



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Monochoria hastata (L.) Solms. from Assam :  Attachments (8). 2 posts by 2 authors.
Attached images may be Monochoria hastata (L.) Solms. Please validate the sp..
Date :24.11.2013
Location: Kamrup district, Assam
Family : Pontederiaceae
Genus & species : Monochoria hastata (L.) Solms.
Habitat: Grows wild on wet places
Habit : Herb

Very beautiful images … thanks for showing..


I think it should be Pontederia vaginalis as per keys and details herein.



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TSP-JAN2016-28-28:Eichhornia azurea (Pontederiaceae) : 1 post by 1 author. Attachments (4)

It is my pleasure to share few images of Eichhornia azurea (Pontederiaceae)

The plant is rooted to the soil, found in shallow water, as against E.crassipes that floats. 

Ref: http://www.theplantlist.org/tpl1.1/record/kew-242126

Ref: https://species.wikimedia.org/wiki/Eichhornia_azurea 

Habit: Herb 

Habitat: Aquatic,Rooted. 

Sighting: Tumkur, Karnataka, about 800 msl 

Date: 08-07-2014



It should be Pontederia vaginalis as per images and details herein.



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Monochoria vaginalis.
pls validate

hopefully it was growing near some water if i am not wrong


Yes … Near a small water body around rice fields


Is there any other Monochoria available in your area. Because I have doubts on this identity!! Leaves are too narrow, flowers are white. M.
vaginalis
is supposed to have cordate base and blue flowers!! This is of course a semi aquatic plant.


Flowers are blue, i dont know why camera could not catch color properly. These photos were taken today only


Leaves are also different. I have seen this plant many times. Never seen with such leaves. You can google this plant and see the colour
and shape of the leaves there. Many pics are available. I assume there is a Flora of Haryana available.
You never know, this could be a new species for state!


There is another taxa which is not accepted by Kew but I believe it to be a distinct plant:
Monochoria vaginalis var. plantaginea (Roxb.) Solms
Though I am not so sure yet.


Two diff species are reported from Haryana vaginalis and hastata.
Key indicate vaginalis as
leaves base cordate or truncate- m. vaginalis
hastate or sagittate- hastata


Monochoria vaginalis var. plantaginea (Roxb.) Solms also given as synonym of M vaginalis in flora of Haryana


I think two species are reported from whole of India but both of them have varieties. All varieties of Monochoria is considered as synonym
of M. vaginalis. Monochoria hastata has one more variety, M. hastata var. elata.


By the way according to your key, your leaves are not truncate!!
neither they are hastate, nor cordate or sagittate. Thats why I had doubts.
Anyways….


Agreed … I will try to visit that place again in one or two days to observe more plants for leaf morphology. If it comes out to be a new ssp or variety, then it will be a new record from Haryana


So now you know sir why I had been so against the id. You may try to find both of them, may be vaginalis and plantaginea, and on the basis
of some prominent characters differentiate it into two distinct varieties or may be species too and you will get a very good taxonomic publication that way too.


Just in case you come to the conclusion that your id is correct. Then also you can write an article on MORPHOLOGICAL AND ANATOMICAL VARIATION IN LEAVES OF MONOCHORIA VAGINALIS FROM HARYANA.


Really great variation if accept it as single taxon. Our Monochoria vaginalis in Kashmir is more like this one
Derekliew


Yes, this is for sure M. vaginalis. Thanks for sharing….


Thanks for Sharing … I will try to find out the plant somewhere else also


Just a clarification. This is not my plant. Just a link from the net, a plant similar to found growing in Kashmir.


Yes, Pontederia vaginalis


.


ID001-weed-bk001 : 3 posts by 2 authors. Attachments (1)

Details..
  • Date: Last week of Aug, 2019
  • Elevation: 1400 masl
  • Habit: In cultivated land
  • Location: Bagmati Province, Central Nepal
  • a weed in field
  • at flowering stage
Thank you in Advance…

Pontederia vaginalis, Pontederiaceae,


.

38 Identify weed plant

4 images.
Please identify the weed plant.
Name of plant:
Location:  near Reserve Forest, Chathamattom, Ernakulam District, Kerala PIN:686671
Date:.               27.11.2020, 12.30pm
Altitude:           1700fsl
Habitat:            wild/paddy field aquatic
Plant habit:      no stem annual
Height:             01 feet
Leaves:            floating oval oblong apex
Flower:             diameter:07mm, blue non fragrant

Monochoria vaginalis



Aquatic Plant From Medinipur: 2 images.
Date/Time- 14/04/2021
Location- Place, Altitude, GPS- West Medinipur, West Bengal
Habitat- Wild
Plant Habit- Rooted hydrophyte, with floating leaves
Inflorescence Type/ Size- Not found
Is it any species of Sagittaria ?

Monochoria


Looks different from comparative images at Pontederiaceae and Sagittaria


Maybe … is correct, it might be Pontederia vaginalis (Monochoria vaginalis var. plantaginea of “Bengal Plants”).


Trapa natans var bispinosa
slender leaves possibly Monochoria vaginalis


References: GBIF– specimens one and two


.


ID request- 280621AS03 – maybe Alisma plantago- aquatica:

Could you please help in identifying this plant?
Date: 26/02/21
Location- Ghoghri Village, near Satpura National Park, altitude- 325 m
Found in the wild, in a stream. It is an emergent aquatic plant
No flower observed at this time.

I don’t think it is matching !


You’re right …,
its Pontederia vaginalis,


Thanks …, I think so too! 🙂


Is there any chance for Pontederia crassipes Mart. as per comparative images at Pontederia ?


No, I don’t think it would be Pontederia Crassipes as it does not have the bulbous buoyant stem. The specimen was firmly rooted in soil and the leaves seemed to be more cordate than the images on the website of crassipes.


.


Help me to identify this flowering plant: 2 images.
Location: Pampore srinagar. 

Photo credits: Mohd. umar kumar.


I hope Pontederia vaginalis


I agree with the sp. id as Pontederia vaginalis (Monochoria vaginalis) for the given images.


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