Persicaria chinensis (L.) H. Gross, Bot. Jahrb. Syst. 49(2): 269, in obs. 269 1913. (Syn:  Ampelygonum umbellatum (Houtt.) Masam.; Coccoloba asiatica Lour.; Coccoloba indica Wight ex Meisn.; Persicaria auriculata (Meisn.) S.K.Dixit, Datt & G.P.Roy; Persicaria umbellata (Houtt.) Nakai; Polygonum adenopodum Sam.; Polygonum adenotrichum Griff.; Polygonum asiaticum (Lour.) B.D.Jacks.; Polygonum auriculatum Meisn.; Polygonum brachiatum Poir.; Polygonum chinense var. procumbens Z.E.Zhao & J.R.Zhao; Polygonum corymbosum Willd.; Polygonum corymbosum var. asperum Blume; Polygonum corymbosum var. densiflorum Blume; Polygonum corymbosum var. puberum Blume; Polygonum corymbosum var. subhastatum Blume; Polygonum crispatum C.B.Clarke; Polygonum densiflorum Blume; Polygonum ovatum B.Heyne ex Roth; Polygonum panduriforme Buch.-Ham. ex Endl.; Polygonum patens D.Don; Polygonum polycephalum Wall.; Polygonum sinense J.F.Gmel.; Polygonum umbellatum (Houtt.) Koidz.; Polygonum zonulatum Noronha; Rumex umbellatus Houtt.)
.
Tropical & Subtropical Asia: Assam, Bangladesh, Cambodia, China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Jawa, Korea, Laos, Lesser Sunda Is., Malaya, Myanmar, Nansei-shoto, Nepal, Nicobar Is., Philippines, Sri Lanka, Taiwan, Thailand, Tibet, Vietnam, West Himalaya; Introduced into: Hawaii, Jamaica, Maryland, Massachusetts, New Jersey, Pakistan, Réunion as per POWO;
.
per-sih-KAR-ee-uh — medieval name referring to the likeness of the leaves to a peach treeDave’s Botanary
chi-NEN-sis — of or from ChinaDave’s Botanary
.
commonly known as: Chinese knotweed, red bush • Assamese: kelnap • Hindi: जंगली पालक jungali palak • Khasi: jaryndem • Konkani: रानसिसोरी ransisori • Malayalam: piripu • Manipuri: অংগোম য়েন্সিল angom yensil • Marathi: परळ paral • Mizo: thaham • Nepalese: कुकुर् ठोट्ने kukur thotne
.
Native of: China, e Asia, Indian subcontinent, Indo-China, Malesia; naturalized elsewhere
.


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Kalatope id al270811:
Monsoon flowers in Kalatope for id

Location Kalatope sanctuary
Altitude 2500 mts
Habit herb
Habitat wild
Plant height 2 feet

This belongs to the family Polygonaceae.


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ID from Chamba al021019:
Here’s another one from my wild surroundings
Place : Kalatope, Chamba
Alt: 2100 mts
month: October
habitat: wild
That’s all I remember…. haven’t got into the habit of keeping field notes as yet…


Looks like Polygonaceae to me.


Aconogonum campanulatum??


Are there any other Indian varieties of Aconogonum …??


Aconogonon campanulatum (Hook. f.) H. Hara (=Persicaria campanulata (Hook. f.) Ronse Decre.) is supposed to have a branched panicled inflorescence.
This is Persicaria chinensis (L.) H. Gross which is characterized by terminal or axillary capitate inflorescence.



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Flora of Haryana: Persicaria chinensis (L.) H. Gross from CCS HAU Botanical Garden:
Persicaria chinensis (L.) H. Gross from CCS HAU Botanical Garden
pls validate


I too think this is Persicaria chinensis (L.) H. Gross
Family: Polygonaceae.



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Kas Week :: DV ;; 19 OCT 07 – 1122 :: Persicaria chinensis:
Kas plateauabout 4000 ft asl
… one of the 39 World Heritage sites in the Western Ghats of India
19 OCT 07
Persicaria chinensis (L.) H. Gross … (family: Polygonaceae)
per-sih-KAR-ee-uh — medieval name referring to the likeness of the leaves to a peach treeDave’s Botanary
chi-NEN-sis — of or from ChinaDave’s Botanary
commonly known as: Chinese knotweed, red bush • Assamese: kelnap • Hindi: जंगली पालक jungali palak • Khasi: jaryndem • Konkani: रानसिसोरी ransisori • Malayalam: piripu • Manipuri: অংগোম য়েন্সিল angom yensil • Marathi: परळ paral • Mizo: thaham • Nepalese: कुकुर् ठोट्ने kukur thotne
Native of: China, e Asia, Indian subcontinent, Indo-China, Malesia; naturalized elsewhere
References: Flowers of IndiaENVIS – FRLHTNPGS / GRINPIEReFlora

Flower in heads. No involucral leaf at base. Petioles not winged. (All this goes in favour of P. Nepalensis)
Stems unarmed nut trigonous…(Hopefully) This is Persicaria auriculata S.K.Dixit, Datta and Roy.
One synonym is Pesicaria chinensis.


Many thanks … for clarifying the differences among P. chinensis and P. nepalensis.
Another species close to P. chinensis is P. dichotoma (which has grooved stem, and minute prickles, the inflorescence as the name suggests is branching, the flower clusters relatively far-spaced).
Present status at The Plants List, Persicaria auriculata S.K. Dixit et al. is a synonym of Polygonum praetermissum Hook. f. …
And Persicaria chinensis (L.) H. Gross is separately treated … The Plants List.


P. nepalensis I hope is a much smaller delicate plant with much smaller infl and distinctly winged petiole. This plant has the habit of P. chinensis. One should always look for some matured flowers in which perianth becomes larger fleshy and blue-black in fruit.
And yes the two P. auriculata (now treated as synonym as mentioned by …) and P. chinensis are very distinct and not synonyms.


Agree with … opinion. This looks like P. chinensis to me too.



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Kas week::PKA43::- Persicaria chinensis:
Persicaria chinensis (Family: Polygonaceae).



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Polygonum sp for ID- PKA- March-37 : 4 posts by 3 authors. Attachments (6).
Saw this climbing herb in Chikmagalur region (karnataka).
It was looking more like a climber (approx 4 m in height)..
Not sure if it is same as Polygonum chinense?? Pl. validate..
Date/Time: 27-01-2014 / 10:00AM
Family: Polygonaceae

I think Persicaria chinensis (L.) Gross


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Pink coloured flowers from Polygonaceae family. I think also could be Periscaria chinensis ??
Location: Mizoram

I think you are right


Climbing herb from Chikmagalur region (karnataka).
It was looking more like a climber (approx 4 m in height)..
Bot. name: Persicaria chinensis (L.) Gross ?
Date/Time: 27-01-2014 / 10:00AM
Family: Polygonaceae

I completely agree…



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This beautiful herb was shot from near Kosani during our visit to Gori Valley area..
I hope this is Persicaria chinensis..


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Polygonaceae Fortnight- Polygonum sp.2 for id from Dalhousie:: NS May 28 : 2 posts by 2 authors. Attachments (4).
This Polygonum was shot from Dalhousie..
Id help is required..


Looks like Persicaria chinensis.



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Polygonaceae Fortnight : 1 – 14 May 2014 : Persicaria chinensis : Kodaikanal : 140514 : AK-8 : 5 posts by 3 authors. Attachments (1).
Seen in Kodaikanal, growing wild.


 


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Plolygoniaceae Id from Bangladesh SM029 : 3 posts by 2 authors. Attachments (3).
Habit: Shrub/Herb
Habitat : Hill forest
Flowering: May
Location : Kaptai NP,Chittagong Hill tracts


Ampelygonum chinense ?


Yes, to me this also looks like Polygonum chinensis



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Herb for ID : 11 posts by 8 authors. Attachments (2)

Location : Dampui, Mizoram
Altitude : ca. 1,200 m.
Date : 16-10-2014
Habit : Herb
Habitat : Wild

Perscaria ?


The plant looks like Persicaria chinensis ..


It’s P.chinensis


I think Persicaria chinensis (L.) Spach



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*Persicaria chinensis ABOCT2016/08 : 5 posts by 3 authors. 11 images.

Last Sunday I walked to a nearby nallah with my daughter and found this Persicaria growing near a rock next to the water. I think this is Persicaria chinensis. Please advise.
Persicaria chinensis
Above Mcleodganj, Dharamshala, HP 1900m approx. 16 October 2016

Yes the conclusion as well pictures are upto the mark !!



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SK480 25 APR-2017:ID : 8 posts by 3 authors. Attachments (5)

Location: Sourinee, Mirik, India
Date: 21 April 2017
Altitude: 4200 ft.
Aconogonum sp ????

Koenigia species in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available on net) 

Did not find any match.


Not Koenigia! Most probably Persicaria chinensis (L.) H.Gross. Only some flowers of the capitate head are visible.


Thank you …! Nepali Names : कुकुर ठोट्ने Kukur Thotne / बाख्रे ठोट्ने Baakhre Thotne / रत्नाउलो Ratnaaulo



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SK790 11 OCT-2017:ID : 3 posts by 2 authors. Attachments (7)
Location :  Tatopani, Pokhara, Nepal
Date : 12 April  2017
Elavation : 5000 ft.
Persicaria chinensis (L.) H. Gross  ????


Yes! Persicaria chinensis (L.) H. Gross
Thanks for sharing!


Thank you Sir !
Nepali Names : कुकुर ठोट्ने Kukur Thotne / बाख्रे ठोट्ने Baakhre Thotne/ रत्नाउलो Ratnaaulo



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SK1231 25 JUNE 2018 : 9 posts by 3 authors. Attachments (9)- around 500 kb each.
Location:  Sakiyong Khasmahal, Pedong Reshi Rd, India
Date: 16 May 2018
Altitude: 5800 ft.
Habit : Wild
Another Polygonaceae sp. 

Persicaria chinensis (L.) Nakai

Polygonaceae
More information here

Thank you …! Looks so difference.

To me it does not look so different from images at Persicaria chinensis


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SK1362 08 AUG 2018 : 8 posts by 3 authors. Attachments (6)
Location: Nagarkot, Nepal
Altitude : 6000 ft.
Date: 18 July 2018
Habit : Wild
Which Persicaria sp.  ??

I think the closest match can be Persicaria chinensis..


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SK1540 26 Oct 2018 : 8 posts by 4 authors. Attachments (7)
Location: Nagarkot, Nepal
Date: 6 September, 2018
Elevation:65000 ft.
Habit : Wild
Persicaria chinensis (L.) Nakai  ??

does it occur in pink?

I just guessed from leaves.

Yes, I think Persicaria chinensis (L.) Nakai. Polygonaceae.
Thanks … for sharing the nice pictures.



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Persicaria chinensis : 4 posts by 3 authors. Attachments (4)
Persicaria chinensis.
Eravikulam WLS, Munnar, Kerala, in the Nilgiris. First week of October 2018

Thanks for sharing the beautiful images of Persicaria chinensis.



Persicaria chinensis :: Iruppu Falls, Coorg :: 12 NOV 19 : 4 posts by 3 authors. 2 images.
Iruppu Falls  Coorg
Date: November 12, 2019 … Altitude range: about 850 – 1,000 m (2,800 – 3,300 ft) asl
Persicaria chinensis  (L.) Nakai

in this dense growth, difficult to see leaves that go with the flowers. nice flowers


Yes, the leaves are all mixed up, or rather hidden, overlapped by other plants’.
The flowers of this genus are similar among its species. As such I have no clear feature to tell. But the sight reminds of P. chinensis.
There is light green, seemingly amplexicaule leaf (or bract) – that helps me, may help others to validate OR comment otherwise.


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POLYGONUM CAPITATUM : 6 posts by 4 authors. Attachments (1)
Attaching a collage of Polygonum capitatum.

Looks different from images at Persicaria capitata (syn: Polygonum capitatum)

Persicaria chinensis


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unknown shrub : 4 posts by 3 authors. 2 images.
If anyone can help me with the name!!!

It is a shrub that was located along our path
mid- east Nepal, ca 2200m
28/10

Persicaria chinensis (L.) H. Gross



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Climber from Uttarakhand 08: ID Requested : 6 posts by 4 authors. Attachments (3).

Please heelp in id this plant.
: Climber, much branched
: Leaves and young twigs with sheath.
: ca. 1800 m asl.

Polygonum chinense, perhaps.


By description in flora,..P. chinesis is a herb, up to 1 m tall, but the present study is a climber ca. 4 m long. However, inflorescence and fruiting pattern matching with P. chinensis. I also check it for P. convolvulus (Climber), but differing in spike like inflorescence.


just because something seems to be a climber and growing tall does not negate the its identity, to my mind
I have a green chilli plant right now in my kitchen that’s almost dying but all thru the year it grew as a straggly almost three foot long “vining” plant
its just that the seed (from the same one red chilli) got stuck at an edge in a small pot and that seedling just struggled and grew taller by the minute… flowered once , never set fruit… it spent all its nutrition and energy into growing tall; while rest of the seeds’ seedlings grew to normal in bigger pots on the same window sill..same light same water same food.. just a different foothold…
Take home message to me has been …
if all else fits, it must get the label of its id…

Same as in cancer tumors that grow into mass and stay that way while in somebody else may spread and spread..we have a ” seed and soil” theory for cancer growth … mother nature being what it is must play the same design in growth in all biological systems , up to a point…
is my two cents worth.
thanks…
Post script:
In Shantiniketan on the grounds of Gurudev’s homestead and other huts/homes there is a vining tree, I want to say mango but it may be something else, I have forgotten’ but its a normally a nice large tree, erect stout.. … but there in that garden its “vining” , one of the brothers or nephews noticed it early on and gave such support as to let it vine…. after almost nearly 100 years its still in that form..
its still present and growing and the guides point it out proudly…
so it happens, has happened…
taught me to keep an open mind not only in human cancers, but in botany also …
this is regarding a polygonum… january 2015 [efloraofindia:210913] Climber from Uttarakhand 08: ID Requested
nice case

Yes!



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SK63AUG6-2016:ID : 6 posts by 3 authors. Attachments (3)
Sharing some pictures for identification shot at Kakani, Nepal on 28 July 2016 at 6000 ft.


Thanks, … Do you have other pictures of the leaves etc. ?


Unfortunately these are the only picture I have.


May be some Polygonaceae member.


Yes, Persicaria for sure! Leaves are not clearly visible. Most probably P. chinensis.


Persicaria chinensis (L.) Nakai !



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Some high school students came to me with many medicinal plants generally used in local medicines. They are given a project by the school on the said topic. out of the plants i have problem in correctly identifying these three plants. Hope somebody may be working on these plants.
Location – Pasighat, Arunachal Pradesh


Is it Persicaria?


… may be right! It looks like Persicaria chinensis.


Yes!



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Garden Plant For ID : Nairobi,Kenya : 08AUG16 : AK-03 : 03/03 : 8 posts by 3 authors. Attachments (4)
Cultivated plant seen last month (July’16) in Nairobi.
Looks like some Persicaria Species from the Knotweed family.

Yes! Persicaria for sure. Can not confirm the species, as I don’t know much about the flora of Kenya.


Thanks for your feedback.
Although seen in Kenya, this was a cultivated, garden plant.
Hope to get the Species.

This looks close to Persicaria campanulata ‘Southcombe White’.
Just a guess.

May be. appears close as per images at

Thanks a lot … To me it is very close to the last link provided by you as the flowers were white. Hope … has a look.


Persicaria chinensis (L.) Nakai !


.


208 ID wild plant: 22 images.

Please ID wild plant,
Location: near Reserve Forest, Chathamattom, Ernakulam District, (Kochi) Kerala PIN:686671
Altitude: 1400fsl
Flower date: 28.11.2021, 12.40pm
Habitat: wild, moisture, stream side
Plant habit: climbing if supported/creeping, branches, weak fleshy purple stem 09mm base diameter, perennial
Height: 01.5 feet
Leaves: alternate, ovate, oblong, apex, black shaded center, serrated margins, purple petiole, size:12×7cm or less
Flower: racemose, clustered, 05 petals, diameter:03.5mm, off-white, good fragrance
Fruit:
Seed:
Camera: mobile Samsung Galaxy A21s


Persicaria chinensis (L.) H. Gross


Yes, it is dear …, thank you very much for ID my plant,



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PLANT FOR ID 160 SMP NOV 2009 : Attachments (2). 12 posts by 5 authors.
For ID.
A small tree seen in Mahabaleshwar 8th Nov 2009.
Small white flowers, somewhat like Polygonaceae. Black fruits like Lantana.
Alternate leaves as seen in picture.

My first reaction was Persicaria chinensis. Is it really woody plant?


This is Polygonum auriculata. Have a look at following link..
http://www.flowersofindia.ChineseKnotweed.jpg


Polygonum auriculata is synonym of Persicaria chinensis. It is good we thought similarly. I had seen this plant only once 15 years back. It is not tree but a perennial herb, sometimes climbing.


That’s right … It was not a tree. Some plants were small seen by road side, while one in our Hotel (Ramsukh) some drooping branches were observed.


Excellent pic for id. It very clearly shows the typical ocreae which are useful to id Polygonum (in the previous sense).
About the name:
As per Maharashtra Dicot II (BSI)
Persicaria auriculata (Meissn.) Dixit, Datta & Roy is current name
Polygonum auriculatum Meissn. is basionym
Polygonum chinense L. var. ovalifolium Meissn. (used by Cooke) is a synonym
Persicaria chinensis (L.) H. Gros var. ovalifolia (Meissn.) Hara is also a synonym (used in Flora of East. Himalaya)


Thanks for the information.
I had somehow missed the finding about ochrea.
(Description from family info: The leaves are stipulate and the stipules are characteristic of the family. They are usually membranous and forming a complete sheath(ochrea)
)
Thanks again for pointing me that.


Thanks …, for detailed update
My data was based on FlowersofIndia website. It is nice that plant was identified and verfied fast and soon.

This thread is turning interesting
I just found out that Persicaria auriculata (Meissn.) S. K. Dixit, Datt & G. P. Roy, 1991 is nom. illeg. being a later homonym of Persicaria auriculata (Meisn.) Massam, 1934. So it can’t be used as name for the taxon. I could not find any record of Persicaria chinensis var ovalifolia or Polygonum chinense var ovalifolium from IK, APNI or GCI through IPNI, and am not sure about its validity.


This is what I found from Annotated Checklist of Flowering Plants of Nepal
Persicaria chinensis var. ovalifolia (L.) H. Gross, ; Fl. E. Him. 71 (1966).
Coccoloba crispata Buch.-Ham. ex Roxb.
Polygonum auriculatum Meisn.
Polygonum chinense var. ovalifolium Meisn.
So if at all our taxon is distinct accepted name should be Persicaria chinensis var. ovalifolia (L.) Gross.


Interesting indeed. Not the first time that BSI nomenclature has provided food for thought and discussion.
Let’s wait for others to comment. Can someone give details from Flora of Maharashtra by Almeida sir? He, being an expert in nomenclature, must have discussed this controversy to some extent.


‘Polygonum auriculata’ is called ‘Paral’ ‘परळ’ in Marathi.


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Polygonaceae Fortnight: Persicaria for ID, Wayanad, Kerala; NAW-MAY01 :  2 posts by 2 authors. Attachments (7).
Kindly identify this Persicaria species. I have forgotten the dimensions of leaves. Flowers and fruits 4-7 mm. Photographed at the Gurukula Botanical Sanctuary growing untended, in Jan 2014.

This is Persicaria chinensis var. ovalifolia.


 


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This Red Knotweed was seen at Mizoram.
Bot. name: Periscaria chinensis
Family: Polygonaceae
Date/Time: 9th Nov./ 01:17PM
Location: Mizoram
Habitat: Wild


Yes! Persicaria chinensis var. ovalifolia (Meisn.) H. Hara. Color variation can be seen in perianth. Common in NE India.



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Polygonaceae Fortnight: Periscaria chinensis ?? at Munnar -PKA5 : 3 posts by 3 authors. Attachments (3).
This was earlier identified as Periscaria chinensis…

Date/Time-

21st November / 08:00 AM

Location- Place, Altitude, GPS-

Munnar  (Kerala),  ~4800  ft

Habitat- Garden/ Urban/ Wild/ Type-

Wild

Plant Habit- Tree/ Shrub/ Climber/ Herb-

Herb

Height/Length-

 ~ 1 m

Leaves Type/ Shape/ Size-

 Alternate,  4 to 7 cm,  Petiole ~ 1  cm,

Inflorescence Type/ Size-

 Flowers in heads, peduncles hairy

Flowers Size/ Colour/ Calyx/ Bracts-

White coloured

Fruits Type/ Shape/ Size Seeds- 

…..

Other Information like Fragrance, Pollinator, Uses etc.-  

Polygonum sp. (Polygonaceae Family)


This is again Persicaria chinensis var. ovalifolia. As said before, variation can be seen in perianth colour. It could be white, red or pinkish.

 


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Polygonaceae Fortnight : Persicaria chinensis :  6 posts by 4 authors. Attachments (2).
Sharing picture of Persicaria chinensis
from Sindhudurg MH

Yes! Persicaria chinensis var. ovalifolia.



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Please identify this plant details of which are as follows( can this be P. chinensis? ):
Date           : 19.08.12                                                            
Location     :Meghamalai hills/ High wavy, Theni dt, Tamilnadu
Altitude      :approx 5000ft
Habitat        :wild
Habit           😕 shrub
Height         😕 2 to 3 ft
Leaves         :as shown
Flowers       :as shown
Fruits           :,
Local name  :do not know

I think yes! Persicaria chinensis var. ovalifolia (Meisn.) H. Hara



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Polygonaceae Fortnight :: Persicaria chinensis from Ooty, Tamil Nadu :: ARKMAY-04 : 3 posts by 2 authors. Attachments (4).
Attached are pictures of Persicaria chinensis from Ooty, Tamil Nadu captured in November 2013.
Kindly validate.


Yes! Persicaria chinensis var. ovalifolia.


Thank you … for specifying the correct species ID….



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Fwd: [efloraofindia:175842] Banglore-Ooty November 2013 :: Requesting ID of this plant :: 27112013 :: ARK-01A : 2 posts by 2 authors. Attachments (4).
Requesting to please ID this plant captured abundantly growing on the roadside in Ooty in November 2013.

Yes! Persicaria chinensis var. ovalifolia as per another thread.


Persicaria chinensis var. ovalifolia from me too.


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ID of Persicaria sp. from Meghalaya KD 02 Nov : 4 posts by 3 authors. Attachments (5)

Attached images are Persicaria Sp. Please ID the plant.  
Date :27.10.2014
Location: Meghalaya
Family : Polygonaceae
Genus & species : Persicaria Sp.
Habitat: Grows wild on open space
Habit :  Herb

Looks like Persicaria chinensis var. ovalifolia (Mesin.) H. Hara



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Satara, Oct 2014 :: Requesting ID validation – Persicaria :: ARKNOV-09 : 6 posts by 4 authors. Attachments (6)
Requesting to please validate ID of this Persicaria sp. captured near Satara, Maharashtra in October 2014.
Is this Persicaria chinensis?


Persicaria chinensis (L.) H. Gross


I also think Persicaria chinensis var. ovalifolia.


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Herb id from Bangladesh : 4 posts by 4 authors. Attachments (2)
Photo taken today

It  is Persicaria sp. (may be  Persicaria chinensis var. ovalifolia (Meisn.) H. Hara.


I think … is right. Pl. see Persicaria chinensis var. ovalifolia


I think … is right!



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Persicaria? Tohangam,Lohit,Arunachal Pradesh. 3.1.17 : 4 posts by 2 authors. Attachments (3)


Persicaria chinensis var. ovalifolia (Meisn.) H. Hara
Polygonaceae


 


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SK685 30 JUL-2017:ID : 5 posts by 2 authors. Attachments (8)
Location: Shivapuri National Park, Nepal
Altitude:6500 ft.
Date: 22 July 2017
Some Aconogonum  sp. ???

Koenigia (Aconogonum) species in eFloraofindia (with details/ keys from published papers/ regional floras/ FRLHT/ FOI/ Biotik/ efloras/ books etc., where ever available on net)

I tried all Polygonaceae but did not find a match.
Is the another  post from Soureni also same ?
efi thread


Is it too Persicaria chinensis (L.) H. Gross  ??


Yes this is Persicaria chinense var. ovalifolia (Meisn.) H. Hara. One may get confused with other species of Persicaria because of its broadly ovate bracts which are prominently visible here at the terminal ends. This species is highly polymorphic and is represented by four varieties.


 


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SK1226 23 JUNE 2018 : 6 posts by 3 authors. Attachments (7) – around 600 kb each.
Location:  Sakiyong Khasmahal, Pedong Reshi Rd, India
Date: 16 May 2018
Altitude: 5550 ft.
Habit : Wild
Polygonaceae ???

I think Persicaria chinensis var. ovalifolia (Meisn.) H.Hara



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SK1227 23 JUNE 2018 : 7 posts by 3 authors. Attachments (5)- around 500 kb each.
Location:  Sakiyong Khasmahal, Pedong Reshi Rd, India
Date: 16 May 2018
Altitude: 5550 ft.
Habit : Wild
Polygonaceae ???

I think Persicaria chinensis var. ovalifolia


 


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Persicaria chinensis or Polygonum auriculata?
Near Kas Mah.


At first, it looks like Persicaria chinensis var ovalifolia only.
As per TPL, there are two Persicaria auriculata (Both unresolved): P auriculata (Meisn.) S.K.Dixit, Datt & G.P.Roy and P. auriculata (Makino) Masam. I’ve not seen any of these either in field or herbarium sheets so refraining myself to comment on the photographs.
Experts may comment.



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SK728 26 AUG-2017:ID : 4 posts by 2 authors. Attachments (5)

Location: Shivapuri National Park, Nepal
Altitude: 7500 ft.
Date: 24 November 2012
Aconogonum campanulatum (Hook. f.) H. Hara ?? Or its variation. or some other ??

I think do not match your images of the same species at
/species/m—z/po/polygonaceae/koenigia/koenigia-campanulata


Persicaria chinensis var. ovalifolia (L.) H. Gross



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A plant from Arunachal Pradesh-4 : Attachments (1). 5 posts by 3 authors.
I am not quite sure whether these are flowers or buds but they were seen at a number of places in Upper Dibang Valley, Arunachal Pradesh. Some were growing at amidst the profusion of vegetation at shoulder height, and some I found growing just off the ground at Mayodia Pass, altitude 2655m.
I request identification please?

May it be a Polygonum, P. capitatum (the knotweed) ?


It is identified as Persicaria strigosa. Incidentally, I found the Pink Knotweed to be very common in Upper Dibang Valley in Arunachal Pradesh. All along the road and even on stone culverts this weed was growing profusely.


Links for Persicaria strigosa:

I have doubts of this being Persicaria strigosa as per POWORbgsyd,


I think this is Persicaria chinensis (L.) H. Gross, as per images and details herein.


Yes …!
efi thread



Pink Knotweed:

Pink Knotweed (Persicaria capitata)
Family: Polygonaceae
Place: Kolakham, Neora Valley NP. North Bengal.
Date: December.2010

I’ve some doubts.
Can u post the habit photographs?


I think this is Persicaria chinensis (L.) H. Gross, as per images and details herein.


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id please- 31012010_Goa_SSN_5: Attachments (6). 13 posts by 7 authors.

request for id.
pics taken at Mahavir sanctuary, Mollem, Goa on 30th Jan 2010.


… possibly the Chinese Knotweed … Persicaria chinensis (syn. Polygonum chinense, Polygonum auriculata)
http://www.flowersofindia.ChineseKnotweed.html

Persicaria dichotoma.


thanx for id.
A small query.
description in your book as well as on the site of flowers of India tallies with both P. chinensis & P. dichotoma in some aspects.
P. dichotoma – stem erect, grooved and prickly. but what i saw was not so. pics. attached will confirm this too.
on the other side, P. chinensis or Polygonum auriculata – stem terete, older stem dark brown, branches long and divariate, black seeds as one can see from the pics. But leaf margins are not red and petiole is not enlarged and auriculate at base.
i am confused.


P. dichotoma has stem minutely prickled and stem without prickles will be P. auriculata. This minute character may not be clearly visible in the picture. A specimen will help in this typical case where 2 species are very close to each other. Must appreciate for going thru the text besides just pictures and that too after ID.


i have attached a pic again which is cropped further. Can one say that the stem is minutely prickled?


As said by … this plant has stem minutely prickled, hence this is Periscaria dichotoma. Thanks to … for bringing this minute fact into consideration.


Also seen in the picture is the characteristic of Polygonaceae family…………… sheathing leaf base of modified stipules called as ochrea which is brown and tubular in this genus.
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=gn&name=Persicaria


Ochreate stiplue is digonestic character of Polygonaceae only genus Antigonon sp doesn’t have this character it an exception. thanks for the update


Ochrea is present in Antigonon, only it is deciduous (caducous would be a better term).
Looks different from Persicaria dichotoma (Blume) Masam. as per images at Persicaria dichotoma (Blume) Masam from Maharashtra_RKC_17122014

This is Persicaria chinensis (L.) H. Gross as per images and details herein


.


Persicaria chinensis from Mullayaiangiri Bababudangiri Road-GS13022022-4: 4 very high res. images.
Persicaria chinensis photographed from Mullayaiangiri Bababudangiri Road, 26-9-2015.



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KAS Week::(Polygonum auriculata – 10/10/2012 – NJ):
Polygonum auriculata – (Paral– Marathi)




A flower from Paren- North Bengal:
sharing the shot of a flower from Paren in north Bengal near Indo-Bhutan border.
Pic taken on 6th June.2011.


Yes Polygonum sp. Could u plz share the habit fotos?


…i dont hv any other image of this species


I think this is Persicaria chinensis (L.) H. Gross, as per images and details herein.




Wild flower from Neora Valley- for ID:
this wild flower was seen near Kolakham village (Neora Valley NP area) north Bengal hills…in December 2010.
ID of this flower wud be appreciated….


Beautiful flowers indeed. It is difficult to guess the flower size.
It may be from Polygonaceae or Rosaceae.


The pic of the flowers were taken last December …so i cant provide with the details about it.
anyway…I got its ID…its a Pink Knotweed (Persicaria capitata).

This looks like Polygonum sp. to me…..but some more photographs are required to confirm at species level.


I think this is Persicaria chinensis (L.) H. Gross, as per images and details herein.



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References:

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