Polygonum plebeium R.Br.Prodr. Fl. Nov. Holl. 420 1810. (Syn. Avicularia indica Didr.; Polygonum aviculare var. minutiflorum Franch.; Polygonum changii Kitag.; Polygonum herniarioides Spreng.; Polygonum humifusum var. mandshuricum Skvortsov; Polygonum parviflorum Y.L. Chang & S.H. Li);
.
pol-LIG-go-num — many knee joints, angles … Dave’s Botanary
PLEE-bee-um — common … Dave’s Botanary
.
commonly known as: common knotweed, small knotweedBengali: চিমটি শাক chimati shaak, খুদি বিষকাঁটালি khudi bisakamtali, মেছুয়া শাক mechuya shaak, রাণীফুল raniphulGujarati: ઝીણકો ઓખરાડ jhinko okharadHindi: चिमटी साग chimati saag, लाल बूटी lal buti, मचेची machechiKachchhi: રતનજોત ratanjotKannada: ಕೆಂಪು ನೆಲ ಅಕ್ಕಿ kempu nela akki, ಸೀರನಿಗೆ ಸೊಪ್ಪು siranige soppuMalayalam: പേരരത്ത peraraththaManipuri: তৰাকমনা tarakmanaMarathi: गुलाबी गोधडी gulabi godhadiNepali: बलुने साग balune saag, बेथे bethe, लट्टे झार latte jhaar, मसिनो पिरे masino pire, सुकुल झार sukul jhaarOdia: ମୁଠି ଶାଗ muthi sagSanskrit: सर्पाक्षी sarpakshi, सर्पलोचना sarpalochanaTelugu: చిమటి కూర chimati kura
.
Polygonum plebeium is one of the most troublesome and morphologically variable species. In Flora of British India, Hooker hesitatingly described almost 11 forms of this species, some of which got escalated later to the species level. The plant is also confused very often with P. aviculare, P. cognatum and other species which are different.
.
This is really a very variable species.. number of flowers as well as hairlines of stem often confuses…
.

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Herb for ID: SPC-004: Please help to identify this herb from Baroda with tiny flowers and leaves.


… perhaps Polygonum plebeium (family Polygonaceae).
Please wait for validating comment(s).


It is Polygonum plebium R.Br. of Polygonaceae.


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Flora of Madhya Pradesh: 04022012 BS-1 Small herb for id from Dried Pond Maihar MP:

Small herb for id from Dried Pond Maihar MP
Wildly growing, spreading small with flower size less than 0.5 cm

shot on 19-1-12


Guess some Polygonum sp


Could this be Polygonum plebeium ?


Agreed … I am also agreed with Polygonum plebeium


You have shown an interesting plant.
Apparantly the thought that it can be Polygonaceae never appeared to my mind.
After reading the ID i checked your notes……… Habitat dry pond corresponds well.
I tried to check for the ochrea……. Yes I think they are there in last two pictures.
FOI says it is native. Is it correct or is it naturalised in India (Origin Australia) ?


… it is difficult for me to comment upon its origin. Now days due to heavy cold i have to shift my System on Ground floor and all hard copies of flora, soft copies in external storage devices are lying in upper room and many times i feel difficulty in checking all these floras etc. However i will try to find……



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6022012 AP-2 Small Flowers for id from Ambala Cantt Haryana:  Photograph taken on 16 Feb 2012
habitat-garden
habit-prostrate
stem-weak
Flowers-pink, very small


Polygonum plebeium R.Br.


Agree with … Polygonum plebeium R.Br.



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Polygonum? Hooghly 3/3/13 sk : 4 + 8 images. 9 posts by 4 authors.

I found this small prostrate-erect herb on the edge of a narrow drain beside a rural road.

I am sorry for very poor quality photographs, due to want of light.
Species : Unknown
H & H : small prostrate-erect herb; leaves alternate; inflorescence axillary fascicled
Date : 2/3/13
Place : Hooghly

Any chance of Polygonum effusum Meisn.?


May be Polygonum plebeium R.Br. though P.plebeium in our area has clearly pink flowers.


Thank you Sir for the very probable ID.

Bengal Plants” keys in :- (Inflorescence in axillary clusters)
 
(i) Sepals all obtuse, short, broad; flowers hidden among stipules ——- plebeium
(ii) Sepals all obtuse, short, broad; flowers all or mostly pedicelled —— plebeium var. effusa
(iii) Sepals all obtuse, narrow ——- plebeium var. micranthema
(iv) Sepals two outer acute; leaves 0.25 in. long or less ——- plebeium var. brevifolia
(v) Sepals two outer acute; leaves 0.5 in. long or longer ——- plebeium var. elegans

The photographs are so bad that i failed to come to any conclusion.


Thanks for this upload. To me too, this looks like a var. of Polygonum plebeium but definitely not P. effusum. I have seen P. effusum in field which has pedicellate flowers exerted from ochrea, obtuse tepals and spatulate leaves. Please check with the detailed description of other varieties of P. plebeium. which you have mentioned above. I will also search for some relevant literature and let you know.


Thank you very much for confirming that this is not P. effusum and at the same time suggesting that this could be a var. of P. plebeium.
In the field i missed the flower. Even i didn’t think that it could be a Polygonum, because i missed the ochrea too!
Of the varieties described in this thread i am left with two options – 1) P. plebeium var. micranthema and 2) P. plebeium var. elegans.
According to F. B. I.
(i) var. micranthema : leaves 1/4 to 1/3 in., obtuse; flowers very minute pedicelled crowded in upper axils, pedicel often as long as the perianth……
(ii) var. elegans : leaves 1/2 to 2/3 in., acute or acuminate; flowers sessile or shortly pedicelled….. 
According to Flora Indica – leaves of P. elegans are bifarious.
I am not sure if the leaves in this plant can be called bifarious.

So, i need to (1) revisit this plant and get some more clear shots and (2) search if there could be any other variety of P. plebeium, not described in the Bengal Plants.


eflora of China, eflora of Nepal as well as The Plant List does not mention any of these varieties.


Attaching new set of photographs (8 images) recorded today. The flowers are so small that better picture using my camera is nearly impossible.


Could this be Polygonum elegans Roxb. of Flora Indica


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Hooghly : Polygonum plebejum var. effusa (Polygonum effusum Meisn.) ? : Attachments (8).  3 posts by 2 authors.

This small prostrate-erect herb is from a relatively low land (occasionally used as agri-land). Can it be Polygonum plebeium var. effusa , as per key in the Bengal Plants, including added info by … ?

These photographs were recorded on 03-April-2013.




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SK131OCT06-2016:ID : 9 posts by 4 authors. Attachments (5)

Sharing some pictures fro ID shot at Roshi River Nepal on 29 May 2015 at 3000 ft.


… to conclude whether this is Polygonum pleibium or otherwise..

Nice pics


Thank you for the ID.

Polygonum plebejum R. Br. (accepted name) or Polygonum plebeium R. Br.  ??

Found different ID in different sites.


Yes! Looks like P. plebeium to me too. Thanks for sharing the pics.


Thank you all for the efforts for the ID. Just one more curiosity !
P. plebeium and P. plebejum are same or different ? Eflora nepal  images looks different. Sending other links also.

Attachments (1)


They are same.


Thank you … Only confusion is image at the link below is different.


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Fwd: Rotala species for valid id : 5 posts by 2 authors. Attachments (1)

I’m here by sending you the image of the Rotala plant for identification. Please go through it and share your opinion 🙂


One more picture attached. Attachments (1)


The attached specimen look like Polygonum plebium


 


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Polygonum plebeium—-validation needed : 8 posts by 3 authors. Attachments (5)

Looks like Polygonum plebeium, though unsure of the first photo which was taken in June 16 while others were taken in Dec.16, different plants of course. Pictures taken at Aamby valley Rd., Lonavala, Pune.


I think appears close as per images at Polygonum plebeium


the first and other three are different; first looks like Polygonum plebium but others are not same


All seem to be Polygonum plebeium. The plant varies enormously according to soil and moisture conditions. The very same plant can look completely different just after monsoon and at the end of summer.
In some sources, including BSI Flora of Maharashtra we find 3 described varieties: var. plebeium, var. brevifolia and var. indica.



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unidentified plant : 2 posts by 2 authors. Attachments (1)

Please assist me identifying this herb..
I found this plant in Rajasthan (Barmer) near a seasonal water body area in association with Ammannia sps, Pulicaria crispa, Glinus lotoides, Marsilea

This looks like Polygonum pleibium


This prostrate herb  was photographed at the top of “Chakdeo hill, Maharashtranear marshy land.

Bot. name: Polygonum plebeium
Family: Polygonaceae


Is this the common form of Polygonum plebeium?
I am not able to make out if the variations in this plant are due to local site factors or if they are distinct species. For example some are more erect, or have smaller leaves or have larger numbers of flowers in the axils.
Please could … comment on this?

You are very correct … Polygonum plebeium is one of the most troublesome and morphologically variable species. In Flora of British India, Hooker hesitatingly described almost 11 forms of this species, some of which got escalated later to the species level. The plant is also confused very often with P. aviculare, P. cognatum and other species which are different. I  wish members would upload many pictures of the same during this fortnight so that we can observe the variations more closely.



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Fwd: Rotala species for valid id : 3 posts by 1 author. Attachments (1 + 1).- more than 1 MB each.

I’m here by sending you the image of the Rotala plant for identification. Please go through it and share your opinion 🙂


One more picture attached.


The attached specimen look like Polygonum plebium



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is this Polygonum plebeium? RV1 : 4 posts by 3 authors. Attachments (3).

is this Polygonum plebeium?  Please confirm


Thanks for this upload. To me this is Polygonum plebeium R.Br.
Following Flora of British India, this should be P. plebeium var. brevifolia.

Experts may comment.


Thank you …,
The plant was in a low lying area of a fallow field in Thane dist. It was mixed with long grass and most stems were erect. The pics were taken in mid March 2014.


This is really a very variable species.. number of flowers as well as hairlines of stem often confuses…
Thanks for confirmation



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Polygonaceae fortnight: Another Polygonum plebeium RV2 : 3 posts by 3 authors. Attachments (2).

This plant is completely prostrate. In another fallow field in Thane dist. The flowerless picture was taken on Dec 29th 2013 and the one with flowers on 8th Jan 2014.
It is still there now and it forms a mat on the surface of the soil. There are still a few flowers.


Yes, it is frequently available in the fields near Bangalore


The leaves appear longer than plants we see in Delhi.



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Possibly Polygonum aviculare, photographed from Morni hills, pl. validate.


For me this is again P. pleibium..


Yes, it is P. plebium.


Achene characters and articulation on pedicel are the differentiating features between P. aviculare and P. plebeium! Not 100% sure but at first go, it looks like P. plebeium to me too.



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Polygonaceae Fortnight- Polygonum pleibium from Panipat:: NS May 31: 3 posts by 3 authors. Attachments (7).

This prostrate and spreading herb is very frequent in waste places and fallow fields..
I hope this is Polygonum pleibium, I have observed two forms:
1. With cluster of flowers at nodes, internodes short, leaves 2-3 cm..
2. With few (1-2) flowers at nodes, internodes long, leaves 4-6 cm or more..

I am uploading them separately..


Beautiful photographs! Thanks for sharing!


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Polygonaceae Fortnight: Polygonum plebeium from Delhi-GSMAY57 : 2 posts by 2 authors. Attachments (3).

Polygonum plebeium, photographed from Delhi

 

Attachments (5).
Requesting to please ID this herb captured growing in a field near Devgad, Maharashtra in May 2014.

Is it some Rotala species?




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ARJUL16 Plant for ID : 4 posts by 3 authors. Attachments (2).

Found growing from between rocks.
Bangalore 13th July


Some Polygonum sp.


It is Polygonum plebeium R.Br.


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Polygonium ID from Bangladesh SM140 : 4 posts by 3 authors. Attachments (1).
Habit: Herb
Habitat: Wild
Location: Chapaynababganj
Flowering: June

What is the habitat ? Is it near a river bank ? Any close up ?


Is it near a river bank, Pagla River, Chapaynababgang, The river came from West Bengal, India


Most probably Polygonum plebeium (Polygonaceae).



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Jan2015sk18 Hooghly – Polygonum plebeium R.Br. : 2 posts by 1 author. Attachments (9)

Possibly var. elegans.


It is not var. elegans, but var. effusa.

 


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Rotala sp. from Assam KD 08 Jan 2015 : 7 posts by 5 authors. Attachments (6)

Attached images may be Rotala sp. Please ID the plant  
Date :10.01.2015
Location: Assam
Family : Lythraceae
Genus & species : Rotala sp.  (?)
Habitat: Grows wild on cultivated land
Habit : Small herb

Isn’t it Polygonum?


I agree with …, possibly P. plebejum var. elegans, two outer tepals being acute.


It seems Polygonum plebium


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help with identification : 5 posts by 3 authors. 2 images.

I am a student from USA studying weeds on farmers fields in Bihar and Uttrah Pradesh. I am trying to identify some of the weed species, and I was wondering if you could maybe help identify any of the weeds in the photos below.


More & larger pictures would have been better for proper Id.


The first photo is Polygonum plebeium and second one Majus.


One of the plant with pink flower photographs looks to me as Polygonum plebeium (family Polygonaceae). Please confirm.



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NA13/07 Requested Id for the attached plant picture : 9 posts by 5 authors. Attachments (2)

Require identification of the tiny pink flowers.
Seen growing near the corners of Ranmal Lake, Jamnagar (Gujarat)
Date : 27th February 2015


Looks like Polygonum paronychioides


Thank you  Sir for the identification. A query…

FOI website says the plant grows at an altitude of 2700-4300m
FOI
Also Flora of Pakistan says the plant is “Very common in the dry inner zones, between 1200-4000 m”
http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=242100127
And Jamnagar has an altitude of 17m.

What possible ways could it have travelled this far?


efi page on Polygonum paronychioides 


Flora of British India records “Polygonum paronychioides …………. Western Himalaya… alt. 8-12000 ft.,…. .”

But the species not likely to be found in Gujarat, as per Cibtech

This is Polygonum effusum Meisn., I think.


Thank You Sir! for the (attachment) paper on Polygonaceae family and clearing the doubts. The plant is Polygonum plebeium (var. effusum)
FOI

This is Polygonum plebeium.


You may like to see the thread



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Weed Id : 4 posts by 3 authors. Attachments (2)
Can you pls Id this garden weed. 

Place : Greater Noida, U.P.


Thanks, … Can you post picture of the leaves ?


I think Polygonum pleibium..!!



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14 May 09, Delhi; Bandh buchara dam side, Jaipur- 8.4.2009; on 2/8/09 in Pocharam, Distt. Medak, AP.; on sandy banks of Yamuna and in wastelands in Delhi- May’10?; in Sonepat, Haryana- 23/4/09;  in Okha Bird Park, Delhi in end May’09; ID(ID-DKB128) – indiantreepix | Google Groups Polygononum plebeium – indiantreepix | Google Groups Polygonum species? – indiantreepix | Google Groups

OBP wildplant – ID Request-22Jun09: SJ – indiantreepix | Google Groups
(230309SCS1-2) Flowering Plant ID – indiantreepix | Google Groups
Polygonum plebeium from Delhi – efloraofindia | Google Groups



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Herb for ID, Anuppur, Madhya Pradesh NAW-AUG18-08 : 6 posts by 3 authors. Attachments (2)
Kindly identify this herb with minute pink flowers found on the edge of a lake in Anuppur district, Madhya Pradesh, photographed in July 2018.

it is Polygonum species

Polygonum plebium?

Pl check for Polygonum plebium


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Hooghly Today : Polygonum plebejum var. brevifolia ? : Attachments (4).  5 posts by 2 authors.

This one comes from the same field where i found my yesterday’s species – efi thread.

Can this be Polygonum plebeium var. brevifoliaefi thread ?


Polygala


… id is correct.



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via Species‎ > ‎P‎ > Polygonum plebeium R.Br. … family: Polygonaceae

Flowers of India Discussions at efloraofindia more views in flickr more views on Google Earth
pol-LIG-go-num — many knee joints, anglesDave’s Botanary
PLEE-bee-um — commonDave’s Botanary
commonly known as: common knotweed, small knotweedBengali: চিমটি শাক chimati shaak, খুদি বিষকাঁটালি khudi bisakamtali, মেছুয়া শাক mechuya shaak, রাণীফুল raniphulGujarati: ઝીણકો ઓખરાડ jhinko okharadHindi: चिमटी साग chimati saag, लाल बूटी lal buti, मचेची machechiKachchhi: રતનજોત ratanjotKannada: ಕೆಂಪು ನೆಲ ಅಕ್ಕಿ kempu nela akki, ಸೀರನಿಗೆ ಸೊಪ್ಪು siranige soppuManipuri: তৰাকমনা tarakmanaMarathi: गुलाबी गोधडी gulabi godhadiNepali: बेथे betheOdia: ମୁଠି ଶାଗ muthi sagSanskrit: सर्पाक्षी sarpakshi, सर्पलोचना sarpalochanaTelugu: చిమటి కూర chimati kura
botanical names: Polygonum plebeium R.Br. … synonyms: Polygonum aviculare var. minutiflorum Franch. • Polygonum changii Kitag. • Polygonum herniarioides Spreng. • Polygonum parviflorum Y.L. Chang & S.H. Li • Polygonum roxburghii Meisn. … status at The Plants List (2013). Version 1.1.
May 29, 2011 … along KSH 34, Dandeli Wildlife Sanctuary


मसिनो पिरे Masino Pire । सुकुल झार Sukul Jhaar । बलुने साग Balune Saag । लट्टे झार Latte Jhaar
including Bethe !

Thank you very much … for this bumper crop of names !! Will add them soon.


is this the ratan jot that some royal chefs used to use long ago  to give their curry a red tinge and have kept it a secret from the cooking experts and regular culinary schools etc


I am not very sure … this plant too is used as greens.
रतनजोत ratanjot … In literature, the vernacular name ratanjot is attributed to at least 15 plant species spanning four different families … research paper.


I know. in some of the Ayurvedic traditional science classes i used to take, just to take my mind off the cancer patients plight in the western medicine model. we ran into this name RatanJot and some of the professors from BHU were guesting. they talked of many plants and their products called ratan jot. i perhaps have the list someplace in my notes and they also mentioned the deliberate confusion created. the story i told you above. so much for the royal chefs’ ego!!! they also used it in meat dishes mainly and in hunting parties mainly. that perhaps explains why i have not found it mentioned in both my grandma’s kitchen notes


Names update:

… plebeium VS plebejum :18 posts by 6 authors.

plebejum seems to be a proper epithet. It is found in quite a few scientific names.
I assume Polygonum plebeium R.Br. and  Polygonum plebejum R.Br. are synonymous … not sure whether there is any mistake in doing so.
Is one of them in Greek and other in Latin ?
They both mean same … “common”, and are even pronounced the same plebeium / plebejum.
Please throw some light on this close names.

Just because a name is found is MANY references, doesnt make it right.
Polygonum plebeium R.Br. is the name and there is no name called Polygonum plebejum R.Br.
Polygonum plebejum R.Br. was a mistake.
I assume its a case of copy paste. Some one made a mistake and others copied it without checking original name.
Now how to check original name when it was published for the first time.
Please check the image of the paper of the book where it was originally published in 1810.
Hope this helps.
Attachments (1)

There is no word plebejan or plebejum in online Cambridge dictionary.


you will perhaps need an old latin dictionary

As per David Gledhill’s –The names of plants book- plebeius -a -um (plebejum) common, plebeius- from Greek (hence both are same)
Now I am adding etymology to all plants -it is in the process.
plebius -a -um veined,

Many thanks … I agree both mean same … “common”.


Can anyone give me an example of usage of both terms in Latin plant names?
One thing for sure, even if they mean same, the spelling must remain as it was in original publication.


Thanks … for your thoughts.
I too think the name Polygonum plebejum R.Br. must have been a mistake.
While putting the query, I had that feeling. But good number of sites showed up this name. I was wondering there could be some story behind this error.
I did not expect epithets to have gained entries in English dictionaries; In fact, I have never found in any search results until now for any genera / epithets.

I found plebejum is a proper epithet used in many other scientific names. Thus had become curious.


Sir can you please give me examples of some names?


Here are some binomials with plebejum
Dendrobium plebejum J.J.Sm.1907 SECTION Crumenata … Orchid Species
Memecylon plebejum Kurz … Catalogue of Life
Entoloma plebejum (Kalchbr.) Noordel., Persoonia 12 (4): 462 (1985)  … Mycobank
Polypodium plebejum Schltdl. & Cham. … GBIF

Entry of Polygonum plebejum R.Br.in some sites that people use as reference:
India Biodiversity Portal
GBIF
Flora of Pakistan
National Biodiversity Network
Some White papers
Chemical study of the flowers of Polygonum plebejum.
Antibacterial Activity of Polygonum plebejum and Euphorbia hirta Against Staphylococcus aureus (MRSA)


Thanks a lot …, it is the one word I am confused, but didn’t think further.


Original epithet used by the author is “plebeium” which should be retained.


Please see the problem below: Notes are highlighted in orange.
All are incorrrect names except the fungi. I cant find this name to make sure if its correct or not.
Dendrobium plebejum J.J.Sm.1907 SECTION Crumenata … Orchid Species

Dendrobium plebeium J.J.Sm., Bull. Dép. Agric. Indes Néerl. 5: 6 (1907). KEW CHECKLIST

Memecylon plebejum Kurz … Catalogue of Life
Melastomataceae Memecylon plebeium Kurz Prelim. Rep. Forest Pegu App. A. p. lxvii.; App. B. 53, in clavi. 1875   IPNI
Entoloma plebejum (Kalchbr.) Noordel., Persoonia 12 (4): 462 (1985)  … Mycobank
I CANT FIND THIS NAME ANYWHERE.
Polypodium plebejum Schltdl. & Cham. … GBIF
Polypodiaceae Polypodium plebeium Schltdl. & Cham. (GCI)
Polypodiaceae Polypodium plebeium Schltdl. & Cham. — Linnaea 5(4): 607. 1830 [Oct 1830] ; HB. 336. Kuhn, Abh. Nat. Ges. Halle 11. 40. Chr. 84. (IF)
Polypodiaceae Polypodium plebeium Schltdl. & Cham. (IF)
Polypodiaceae Polypodium plebeium Schl. & Cham. (IF)
Entry of Polygonum plebejum R.Br.in some sites that people use as reference:
India Biodiversity Portal
GBIF
Flora of Pakistan
National Biodiversity Network
ALL ARE WRONG.

Thanks very very much dear Pankaj for the time and efforts !! Thanks ….
Bit by bit towards स्वच्छ अंतरजाल अभियान !!!
To me, we have concluded this thread … plebejum is incorrectly used in place of plebeium, practically in all cases of botanical names, and may be so in zoological too.

During this discussion, I found that – though only one of them is used as a valid epithet, both are otherwise valid words, having same meaning (common) and sound same – refer Dave’s Botanary … plebeium / plebejum.



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Pl id spreading plant of pink flower : 7 posts by 5 authors. Attachments (1)- 7 mb. 

Plz id a spreading plant of pink flower, location lonar, jalna, February

Polygonum sp,

Polygonaceae,


Polygonum plebeium ??


Thanks, … Yes, may be Polygonum plebeium as per images and details herein.

Yes, I agree with opinion of …


.


Tiny Plant for ID : Nasik : 18JAN21 : AK-15
3 images.
A tiny wild plant seen today (18.6.21) with very tiny pink flowers.


Polygonum plebium


.


Need help with id of tiny pink flower in dried lake bed: 2 images.
Bhopal; black soil

1/4/2021


Polygonum plebeium R.Br. !


For me … ID is correct.


I too agree with …



.

References:

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