Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross, Bot. Jahrb. Syst. 49: 277 1913. (Syn. Cephalophilon capitatum (Buch.-Ham. ex D.Don) Tzvelev; Polygonum capitatum Buch.-Ham. ex D.Don);
Indian Subcontinent to S. China and Indo-China: Assam, China South-Central, China Southeast, East Himalaya, India, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, Tibet, Vietnam, West Himalaya as per POWO;
Pink Knotweed, Pink-head knotweed, Pink bubbles • Nepali: रत्नाउले झार Ratnyaule jhar; 


HP, Oct 2014 :: Requesting ID validation – Persicaria4 :: ARKDEC-39 : 3 posts by 2 authors. Attachments (5).
Requesting to please validate ID of this plant captured near Dharamshala, HP in October 2014.
I hope this is Persicaria capitata (based on FoI pics).

Yes …, rightly identified..


Flower for Id- ID19102015SH2 : 2 posts by 2 authors. Attachments (1)

Old picture of flower for Id pl.
Location – Chakrata,Uttarakhand.
Date- 04.10.2009
Habitat –Wild

Persicaria capitata (Polygonaceae).


Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross (accepted name) : 4 posts by 3 authors. Attachments (2)

Location: Pilot Baba Ashram, Bhaktapur , Nepal
Altitude: 5000 ft.
Date: 5 July 2016
Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross (accepted name)
Nepali Names: रत्नाउलो  Ratnaaulo 

This is a distinctive plant. Recorded between Godawari and Phulchoki @ 2300-2800m @ Sheopuri @ 2440-2740m in ‘Flora of Kathmandu Valley’. Stewart only occasionally came across it @ 1200-1800m in Hazara and Kashmir, commenting it was common to the east.

Collet found it to be very common on rocks & walls at Shimla; there is a line drawing of it in Flora Simlensis.
Flowers of Himalaya say cultivated areas, banks & rocks; common Pakistan to SW China @ 600-2400m.
‘Enumeration of Flowering Plants of Nepal’ give 2400m as it upper limit, so rather odd that ‘Flora of Kathmandu’ should record it at and indeed above its previous known altitudinal limits.
Cultivated in the UK. I last saw it growing on a bank en route to Dalhousie from Chamba side.

in Dharamshala- Aug’09;



Wild Flower? – Ground cover? – for ID – 110711 -RK-!:
Request ID. Pics taken in march 201 at Los Altos, California. Low-growing.

Polygonum capitatum


VoF Week : Polygonum capitatum/ Persicaria capitata:
Name of species : Polygonum capitatum / Persicaria capitata

Family : Polygonaceae
Habit : Herb
Habitat : Hill slope, open forest
Date of click : 13th Aug`12
Location: Govind Ghat to Ghanghariya route .
Abundance : Common sighting.


VoF Week :: DV :: 04 AUG 12 – 0102 :: Persicaria capitata (syn. Polygonum capitatum) along Ghangaria – Govind Ghat trail:
Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross (family: Polygonaceae)
syn. Polygonum capitatum Buch.-Ham. ex D.Don
4 AUG 12
Ghangaria – Govind Ghat trail5800 – 10160 ft



VOF Week 270812_DS_07:
This one was like ground covering weeds, had tiny pinkish flowers and dark green thick folioage.
Need id from experts.

Yes Polygonum capitatum



VOF Week: Persicaria capitata at Joshimath:
Persicaria capitata (Family:Polygonaceae) at Joshimath.

Very nice…shyly blooming…

For Id 151212 AM1: 1 correct image as above.
Both are Small herb from Aritar, east Sikim.

Herb-I might be Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross, don’t know the other one.


Resurfacing for id of flower -ID11062013SH2 : Attachments (1). 5 posts by 4 authors.

Resurfacing flower for Id from Chakrata again.
Location – Chakrata
Date / Time – 04.10. 2009 / 3.00 pm.
Habitat – Wild 

Persicaria, may be P. nepalensis

In fact, I have one more unidentified image from Chakrata which looks more like P. nepalensis. I am attaching the photo for ur reference and adding to my own confusion 🙂

Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross
Very common in NE India.


Requesting to please ID this plant captured in the Ooty Botanical Gardens, Ooty in November 2013.
Unfortunately, this is the only pic I have, is this enough to ID? 

Looks like Persicaria capitata to me….

Yes …agree with … ID!

ID Request for tiny herb from Sikkim 27022014: SCFEB17: Attachments (1). 6 posts by 4 authors.
Please help for this ID.
Place: Chungthang, North Sikkim
Date: June, 2007 

Should be Persicaria capitata..

Persicaria capitata from me too.

Yes, looks like Persicaria capitata. Nice photograph..


Polygonaceae fortnight : Persicaria capitata : 4 posts by 4 authors. Attachments (2).
here is Persicaria capitata from Chopta

Wow! Beautiful close up! Thanks for sharing …

Polygonaceae Fortnight: Persicaria capitata at Joshimath .-PKA27: : : 1 post by 1 author. Attachments (2).
Persicaria capitata (Family: Polygonaceaeat Joshimath.


Polygonaceae Fortnight :: Persicaria capitata from Ooty, Tamil Nadu :: ARKMAY-06 : 3 posts by 2 authors. Attachments (1).
Attached is a picture of Persicaria capitata from Ooty, Tamil Nadu captured in November 2013.
Kindly validate.

Yes! Persicaria capitata.

This is also one of the very common species of Western Himalayas.. recorded from Chakrata..
I hope this one is Persicaria capitata (Buch.-Ham. ex D.Don) H. Gross

Beautiful images! Thanks for sharing!!

Polygonaceae Fortnight- Persicaria capitata from Shimla:: NS May 18 : 4 posts by 3 authors. Attachments (4).
This is again Persicaria capitata, this time from Shimla, wanted to confirm as the leaves and stem appear much more hairy..

Beautiful pictures! Thanks for sharing.

Just captured from UCBG today from Asian section

Thank you very much for confirmation and liking …


POLYGONACEAE FORTNIGHT 1-14 May 2014: Persicaria capitata from Uttarakhand_DSR_5 : 4 posts by 4 authors. Attachments(1).
Persicaria capitata (Buch.-Ham. ex D.Don) H. Gross is a common herb in mid hills of Uttarakhand. Growing over rocks, this species has a good potential of becoming a rock garden plants.
Shot near Bhowali (Naini Tal) of Uttarakhand.

Yes a very characteristic species.

Attached are pictures of Persicaria capitata from Almora, Uttarakhand captured in November 2012.
Kindly validate.

Yes! Persicaria capitata.

Persicaria capitata, a beautiful garden plant seen at Nuwara Eliya, Sri Lanka.

Polygonaceae Fortnight : 1 – 14 May 2014 : Persicaria capitata : Kenya : 140514 : AK-1 :  3 posts by 2 authors. Attachments (2).
Persicaria capitata seen in Nairobi, Kenya during visit in Jan, 2009.

Yes for P. capitata.

Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross
syn: Polygonum capitatum Buch.-Ham. ex D. Don
A common Himalayan creeping tufted perennial herb with capitate inflorescence and pinkish flowers.
Photographed from Agastamuni in Uttarakhand.

Yes Sir it is common throughout Uttarakhand in mid hills



Polygonaceae Fortnight: Persicaria capitata from Chakrata and Baijnath in Uttarakhand-GSMAY31 : 3 posts by 3 authors. Attachments (5).
Persicaria capitata
Photographed from Baijnath and Mussoorie Chakrata Road in Uttarakhand

Yes Sir, very common and beautiful herb when in full bloom.

Beautifully illustrated! Thanks for sharing Sir!


Persicaria capitata/ABOCT10 : 3 posts by 3 authors. 2 images.
Pink Knotweed or Japanese Knotweed is doing well now with fresh bright pink heads poking out of stone wall crevices around my home. It has some medicinal value and is known to be used in China for treating urinary tract infections.  The leaves have a ‘v’ mark on their upper surface.

Pink Knotweed (Persicaria capitata)
Mcleodganj, Dharamshala, HP
07 October 14

Yes, beautiful bloom of this widespread herb.

I think yes, beautiful photographs

These weeds are flowering too and I am putting a couple of pictures here for record. 2 images.
Above Mcleodganj, Dharamshala, HP
27 March 2016

wonderful faces of these tiny flowers … you know i am greedy…now i  want to see the v mark on the leaves… while you are at it.. if you have the heart to uproot one of these weedy things
could you show the whole plant and its roots…  i want to know if it has root knots or nodules… i.e. does it fix nitrogen. its not the sole property of legumes you know.

So nice to see the close ups.

Thank you …. , I will pull out one and photograph the features you asked for. The leaves with ‘V’, I have shared before too, but I will do so again.

Here are the leaves again as promised. I pulled out the plant rather clumsily and am not sure if I got the whole root. Could you see from these what you were hoping?
While looking at the plant closely I found disc like growths on leaf axils. Including those pictures too. 7 images.

Through your lens, we are seeing many aspects not seen in earlier postings. Thanks, …, for enriching efloraofindia through your eyes.

Thank you …. It’s thanks to … that I had another look at the plant and found something I didn’t know before.

Thanks … no i dont see any of the nodules i thought might be there and those little “stipules”?   may be … can tell us


Winter Colours/ABDEC31 : 4 posts by 3 authors. 1 correct image as above.
Idling about in the cold chilly morning today I found comfort in the warm autumn/winter colours of these plants. I thought I will share these with you. All photos were taken on my phone. As always, please correct me if I have misidentified any of these.

Mcleodganj, Dharamshala, HP
16 December 2014
3. Pink Knotweed (Persicaria capitata)

persicaria capitata : 2 posts by 2 authors. Attachments (2)
Persicaria capitata
seen near Chopta at a slightly lower altitude probably around 7,500

Id of Flower -ID03122019SH1 : 3 posts by 2 authors. Attachments (1) – 1 mb.
Flower for id pl.
Location -Mandal (Uttarakhand)
Date – November 2019

Persicaria capitata


Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross: 1 very high res. image.

Location: Kalikot, West Nepal
Altitude: 1695m.
Date: 14 August 2021
Habit : Wild 


Persicaria capitata from Dalhousie-GS02032022-1: 4 very high res. images.
Persicaria capitata photographed from Dalhousie, 29-4-2015.


Regarding identification of the species collected from Nagaland circuit house Mokokchung: 7 high res. images.
Persicaria capitata (Buch.-Ham. ex D. Don) H. Gross


Please id this Persicaria sp.: (Mixed thread): 2 images.
Found and photographed this flower of Polygonaceae family in Upper Samdong area, East Sikkim.
Please confirm whether it is Persicaria capitata (Pink Knotweed) or any other Knotweed species.

Yes !