Persicaria longiseta (Bruijn) Kitag., Rep. Inst. Sci. Res. Manchoukuo 1(8): 322, in nota 322 1937. (Syn: Polygonum caespitosum var. longisetum (Bruijn) Danser; Polygonum longisetum Bruijn);
Pakistan to Russian Far East and Philippines: Amur, China North-Central, China South-Central, China Southeast, India, Japan, Jawa, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Manchuria, Mongolia, Myanmar, Nepal, Pakistan, Philippines, Primorye, Sakhalin, Taiwan, Tibet, Tuva, West Himalaya, West Siberia as per POWO;


SK1654 18 Dec 2018 : 4 posts by 3 authors. Attachments (5)- around 1.2 mb each.
Location: Nakkhu, Lalitpur, Nepal
Date: 12 November 2018
Altitude:  4400 ft.
Habit : Wild
Which Persicaria.. ??

I think Persicaria longiseta (Bruyn) Kitag.



Weeds are beautiful_Persicaria maculosa_RKC02_091011:
Persicaria maculosa for you

Family: Polygonaceae.
Loc.: Daejeon, S. Korea
Date: 9th Oct. 2011.


I request all of you to please consider this plant as Persicaria longiseta (Brujin) Kitagawa. Apologies for my mistake. Both the plants are morphologically very similar. They only differ with a few micro morphological characters like length of the bristles of ochrea, style no. and nut shape. Today I came across a fruiting plant of the same the nuts of which were trigonus. The number of style is also 3 here. Uploading two more photographs for your perusal.


Polygonaceae Fortnight: Persicaria hydropiper from Chakrata-pl validate-GSMAY33 : 3 posts by 2 authors. Attachments (3).
Perhaps Persicaria hydropiper, photographed from Tiger fall area of Chakrata, please validate or give correct identification

efi page on Persicaria hydropiper

Persicaria longiseta (Bruijn) Kitag.

I think you are right … Thanks for solving this long pending ID.


SK 2841 11 November 2020 : 8 very high resolution images.
Location: Kathmandu Valley
Date:  October 2020 
Elevation: 1500m.
Habitat  : Wild
Persicaria ….??? 

Most probably Persicaria hydropiper (L.) Delabre
Many allied species of the same are known. Therefore, we’ll need more photographs showing the floral characters to confirm the ID.

Pl. see all the high resolution images at SK 2841 11 November 2020

Yes, I saw that. Can’t see the open flowers there. Therefore, suggested the tentative ID.

Pl. also consider Persicaria longiseta (Bruijn) Kitag.
To me appears close.
HP, Oct 2014 :: Requesting ID – Persicaria5 :: ARKDEC-40 : 6 posts by 3 authors. Attachments (6).
Requesting to please provide ID of this Persicaria species captured near Manali, HP in October 2014.

efi page on Persicaria minor (Naturalized)

Photo at Sr.No. 6 Looks as Polygonum hydropiper Jal marich.

The plant uploaded is Persicaria hydropiper variety elagans

To me appears more close to Persicaria glabra

Not P.glabra.. I’ll get back to you soon.

to me, it looks like Polygonum hydropiper, The leaf juice is pungent and strong-smelling. Crushed leaves are put into the deep pond inhabiting fish which forces the fish to come out from their hiding as the plant juice is irritating to the fish eyes Forms patches in moist, boggy places.

Thanks, … But looks different from Persicaria hydropiper as per images and details herein.

Though the plant P.glabra grow\s Also grows under a similar environmental niche,, the nodes have glabrous scales with rough hairy sheath enclosing the nodes.

Persicaria longiseta (Bruijn) Kitag. ??
May I request you for posting high res. images to check the details.

There are some chances of it being Persicaria minor (Huds.) Opiz

5 high res. images.

To me appears close to images at Persicaria longiseta (Bruijn) Kitag., as suggested by …