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Bistorta affinis (D. Don) Greene, Leafl. bot. observ. 1:21. 1904 (Synonym: Persicaria affinis (D.Don) Ronse Decr.; Polygonum affine D.Don; Polygonum brunonis Wall. ex Meisn.; Polygonum donianum Spreng.);
. Afghanistan, East Himalaya, Nepal, Pakistan, Tibet, West Himalaya as per POWO; . Himalayan Fleeceflower, Himalayan knotweed ;
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Perennial plant with woody rootstock clothed with old stipules, and procumbent tufted branches up to 25 cm long; leaves mostly basal, elliptic-lanceolate, margins recurved, crenate, glabrous; stem leaves few; ochrea up to 1 cm long, many-nerved, brown; flowers pedicellate, white turning rosy with age, in compact 5-8 cm long erect spicate racemes; tepals 5, biseriate; stamens 8; ovary trigonous with long free styles; nut trigonous, 2-2.5 mm long.
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Persicaria affinis (fleece flower, knotweed) is a species of flowering plant in the family Polygonaceae, native to the Himalayas. Formerly known as Polygonum affine, other synonyms include Bistorta affinis and Polygonum brunonis. P. affinis is a creeping, densely tufted, mat-forming perennial, growing to 25 cm (10 in) tall by 60 cm (24 in) broad. The narrow elliptic leaves are glaucous beneath. Leaves are mostly at the base, 3–8 cm long, with the base narrowed to a short stalk. Leaf margins are entire or very finely toothed. The mid-vein is prominent. Cylindrical spikes of many pale pink or rose-red flowers are borne at the top of short erect stems, from midsummer to Autumn. Flower-spikes are 5–7.5 cm (2–3 in) long, with densely crowded flowers. Stamens slightly protrude out of the flowers. Flowering stems are several, 5–25 cm tall, with very few smaller leaves. When the flowers have died, they tend to persist on the plant into winter.[1]
P. affinis is found in the Himalayas, from Afghanistan to E. Nepal, at altitudes of 3,000–4,800 m (9,843–15,748 ft).[2]
(From Wikipedia on 11.5.14)
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Flora of Uttarakhand- Bistorta affinis ?: – Bistorta affinis (=Polygonum affine).
flowers from himachal, mm1 08062011:
Some more flower photographs from the trip to ladakh in july 2008. Wondering if this flower can identified. It was growing past rohtang pass near the town of Keylong The first photograph is a detail from the second Yes Bistorta affinis (syn: Polygonum affine)
Bistorta affinis (D. Don) Greene, Leafl. bot. observ. 1:21, 1904 syn: Polygonum affine D. Don; Persicaria affinis (D. Don) Ronse Decr.
Common name: Himalayan fleece-flower
Perennial plant with woody rootstock clothed with old stipules, and procumbent tufted branches up to 25 cm long; leaves mostly basal, elliptic-lanceolate, margins recurved, crenate, glabrous; stem leaves few; ochrea up to 1 cm long, many-nerved, brown; flowers pedicellate, white turning rosy with age, in compact 5-8 cm long erect spicate racemes; tepals 5, biseriate; stamens 8; ovary trigonous with long free styles; nut trigonous, 2-2.5 mm long.
Photographed from Apharwat Mountain in Kashmir in August, often forming patches among rocky slopes, alt. 3500 m.
Polygonum affine D. Don is the accepted name now I had seen that, but used this name as it has been an accepted name in our database FOI, and also GRIN. If we follow The Plant list we will have to change names of all Bistorta species in FOI. One of those many Polygonaceae members from Himalayas. I had seen this in Spiti valley in Aug2009 I am in the process of cleaning up names at FOI. But it will happen slowly, with 3,400+ species. . Himalayan knotweed (Polygonum affine) Place : Near Shri Hemkund Sahib, Uttarakhand 15.08.2012 Yes … Very good photograph.    VoF Week :: DV :: 03 AUG 12 – 1242 :: ¿ Polygonum affine ? along Hemakund – Ghangaria trail: 3 AUG 12
Hemakund – Ghangaria trail … about 13500 ft Habitat: sloping meadow
Habit: small herb, about 20 – 30 cm high; flower about 3 – 5 mm across I hope Polygonum affine Many thanks … for your thought; am convinced it to be Polygonum affine.
VoF Week: Polygonaceae member for id from Valley: I think yes. Polygonum affine
VOF Week: Bistorta affinis en-route Hemkund Sahib: I think we adopt Polygonum affine, being followed in FOI as well as The Plant List. Very good photographs Yes … Nice photographs
   Bistorta sp. from Paddar valley J&K. 1: Request for Identification Kindly identify this Polygonaceae plant
Location: Paddar valley J&K.
Date: 2nd August 2011
Altitude: About 3700 meters asl I hope Polygonum affine Attaching plant which I have considered as Polygonum affine.
Now I think both the plants belong to same species. I am doubtful about your Bistorta 1.jpg. Are you sure it is from same plant as Bistorta 1a.jpg. Your Bistorta 1.jpg looks more similar to Persicaria vivipara. I have photographed the two plants from two different locations even on different mountains. But only by comparing the colour of flower I thought these to be the same species. to me it is also Polygonum affine Pictures are not very clear……but the leaf shape and absence of the characteristic bulbils in both the pictures are compelling me to go with B. affinis (D.Don) Greene.
Polygonum affine in nature’s own alpine garden:
Polygonaceae Fortnight Bistorta affinis from churdhar sirmour dist. of HP : 4 posts by 4 authors. Attachments (1). Nicely clicked! Crenulate leaf margin and spikes without bulbils are supporting your ID.
        Polygonaceae Fortnight: Bistorta affinis at Hampta pass -PKA9 : 3 posts by 3 authors. Attachments (8).
This was one of the most dominant herb i had seen on the way to Hampta Pass at the altitude of approx 12000 ft to 13000 ft.. Very attractive pictures…thanks … . Polygonaceae Fortnight: Bistorta affinis en-route Hemkund Sahib.-PKA25: : : 4 posts by 4 authors. Attachments (6),
Polygonum affine/ Bistorta affinis en-route Hemkund Sahib. (Family: Polygonaceae). Yes, an eye catching herb of a beautiful habitats… Nice inages …
Beautifully illustrated! Thanks for sharing …
POLYGONACEAE FORTNIGHT 1-14 May 2014: Bistorta affinis from Himachal GSG-13 : 6 posts by 5 authors. Attachments (2).
Kindly find below images of Bistorta affinis from GHNP, Kullu, Himachal Pradesh. Beautiful thicket of this alpine beauty.
POLYGONACEAE FORTNIGHT 1-14 May 2014: Bistorta affinis from Uttarakhand_DSR_13 : 3 posts by 3 authors. Attachments (1). What a lovely photo.. Thanks for transporting us to the higher Himalayas..
Polygonaceae Fortnight: Bistorta affinis (D. Don) Greene from pl Validate-GSMAY50 : 2 posts by 2 authors. Attachments (1). Photo is not clear.. probably B. affine.
Yes! B. affine! Thanks for sharing!
Since the plant uploaded has dried but it appears as Bistorta affinis Yes! Looks like Bistorta affinis only. Thanks …, I got the same plant from same location, in same stage..wanted to confirm but never posted, … … Looking at the profusion of flowers (although dried up), I felt I missed the flowering state and I felt very bad, it must have been very beautiful indeed…. It is Polygonum affinis Frost bitten Bistorta affinis Syn: Polygonum affine. bi patches covering rocky slopes is a commom scene in Rohtang Slopes & elsewhere under similar conditions Thank you … for validating and the info…Yes, the entire area at the top was covered with such dried up plant.
Polygonum affine ABAUG207/04 : 3 posts by 3 authors. Attachments (3) Please advise if I am wrong.
Polygonum affine
Above Lahaish Cave towards Indrahar Pass, Dharamshala, HP
3900m and above
28-29 July 2017.
Yes, correctly identified …
Plant for ID :: Hemkund, Uttarakhand :: Aug 2018 :: ARKOCT-39 : 5 posts by 4 authors. Attachments (5)
Saw these near Hemkund, Uttarakhand in Aug 2018.
They were growing very near to the Bistorta I posted earlier. However, these were reddish in colour. Do they belong to the same species – B. vivipara or B. macrophylla?
Requested to please provide ID.
Bistorta affinis from Kedarnath area, Uttarakhand_DSR : 5 posts by 5 authors. Attachments (1)
Bistorta affinis (D.Don) Greene (Polygonaceae), photographed at about 4500m elevation near Kedarnath, Uttarakhand in last week of September 2018. Despite a snowfall it is not ready to surrender and rising up.
it cant be lingering snow, so it snows that early? like you said rising up… it still needs to go to seed otherwise end of its line at least this group’s. thanks for your trekking. we get see these Wow, this is real fighter.. Lesson of life for all..
“not to give up even in most difficult conditions”..
Flora of Uttarakhand- Herb7 for Id- JM – efloraofindia | Google Groups . PM01-16082021- Plant id from Pangi valley, H.P: 4 images. Habitat- wild
location- Hudan bhatori, Pangi valley, Chamba, H.P.
Altitude- 3200m
Date- July 2021 Check with Persicaria Bistorta affinis (=Polygonum affine) to me. Please compare with: It is looking like B. affinis
But I don’t have closeup images of the plant. Thanks, …, for id as Bistorta affinis Yes, agree with … ID. Bistorta affinis (D.Don) Greene .
Polygonaceae Fortnight:: Bistorta affinis :: Spiti :: SMP02 : 5 posts by 5 authors. Would appreciate if you upload leaf pictures too. May be Bistorta vaccinifolia.
It is suggested for information of all members that while uploading photograph of any plant, emphasis should be laid on showing all morphological parts instead of going for magnification of flowers only, which at most places diminishes the chances of easy & correct identification. Bistorta affinis Greene looks close ! Yes, appears more closer to images at Bistorta affinis (D. Don) Greene
PLANT FOR ID 112 SMP JUN 09 Lahaul- Spiti: Spiti valley series Some Persicaria Sp. Most likely Polygonum amplexicaule, but leaves should help Appears more closer to images at Bistorta affinis (D. Don) Greene .
Bistorta species : 1 post by 1 author.
Could the members of this esteemed group help establish the ID these wonderful, high-altitude, monsoon flowers photographed at the Rohtang Pass, Himachal Pradesh. Bistorta vaccinifolia ?? The pink ones might be Persicaria vivipara, and the yellow flowers may belong to Potentilla sp. or Acomastylis elata There is a difference of opinion on the pink flowers, Persicaria v. or a Bistorta species. So, what should I settle for? Pl. check at Appears more closer to images at Bistorta affinis (D. Don) Greene I recently went to Spiti and was quite amazed by the variety of flora available in a region that I always thought of as a cold desert.
I am posting for ID here. My apologies if these have been posted earlier, some of them were a little confusing for me.
Date/Time- August 2014
Location- Place, Altitude, GPS- Lahaul Spiti, HP, ~4600m ASL
Habitat- Garden/ Urban/ Wild/ Type- Limited vegetation, no trees
Plant Habit- Tree/ Shrub/ Climber/ Herb- Shrub?
Height/Length- About 1 foot? Polygonum viviparum ?, it will have underground rhizome. I think appears close to images at Bistorta affinis (D. Don) Greene
ID the flower at Tawang AP: – This is Bistorta sp. (Polygonaceae). Pl post some better photos with leaves for species identification. Maybe Bistorta affinis (D. Don) Greene, as per images and details herein. . References:
POWO Catalogue of Life GRIN The Plant List Ver.1.1 (Unresolved) Flora of Pakistan Annotated checklist of Flowering plants of Nepal Flowers of India India Biodiversity Portal Wikipedia
Kew Science conservation CRC World Dictionary of Medicinal and Poisonous Plants: Common Names … By Umberto Quattrocchi (2012- Details)
Indian Medicinal Plants: An Illustrated Dictionary edited by C.P. Khare (2007)
Encyclopaedia of world medicinal plants, Volume 1 By T. Pullaiah
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