Bistorta affinis (D. Don) Greene, Leafl. bot. observ. 1:21. 1904 (Synonym: (≡) Persicaria affinis (D. Don) Ronse Decr.; (≡) Polygonum affine D. Don (basionym)); 
 
Himalayan Fleeceflower, Himalayan knotweed ;
 
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.
  

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] 
The plant is used ornamentally as groundcover.
(From Wikipedia on 11.5.14)
 

 

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27-09-2010: between Balu ka Gera and Hampta Top (Manali region); on 13/8/10 during the trek from Ghangaria (around 11,000 ft.) to Hemkunt Sahib (around 14000 ft.);
ID request-141010-PKA2 – efloraofindia | Google Groups Flora of Uttarakhand- Herb7 for Id- JM – efloraofindia | Google Groups


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Flora of Uttarakhand- Bistorta affinis ?: Wild Herb captured on 13/8/10 during the trek from Ghangaria (around 11,000 ft.) to Hemkunt Sahib (around 14000 ft.).


Bistorta affinis (=Polygonum affine).


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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)


 

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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
 http://www.theplantlist.org/tpl/record/tro-50133712
Status of Bistorta affinis not resolved.


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.


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Himalayan knotweed (Polygonum affine)

Place : Near Shri Hemkund Sahib, Uttarakhand

15.08.2012


Yes … Very good photograph.


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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.


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VoF Week: Polygonaceae member for id from Valley: Polygonaceae member for id from Valley

Small herb with dense terminal spike


I think yes

Polygonum affine


 

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VOF Week: Bistorta affinis en-route Hemkund Sahib: Bistorta affinis en-route Hemkund Sahib.
(Family: Polygonaceae).


I think we adopt Polygonum affine, being followed in FOI as well as The Plant List.

Very good photographs

 

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VoF Week: Bistorta affinis from Valley:   Bistorta affinis from Valley


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.

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Polygonum affine in nature’s own alpine garden: Polygonum affine D.Don (Polygonaceae) in nature’s own alpine garden.This is a common dwarf shrub in alpine zones of the Himalaya. It produces numerous small spikes on erect branches as seen here. The species grow over and among the large boulders in thin soil.


 

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Polygonaceae Fortnight Bistorta affinis from churdhar sirmour dist. of HP : 4 posts by 4 authors. Attachments (1).

Shot from churdhar at 3300 mt


Nicely clicked! Crenulate leaf margin and spikes without bulbils are supporting your ID.



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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.. 
Bot. name: Bistorta affinis
Family: Polygonaceae
Date / time: 27-09-2010 / 11:40AM
Location: between Balu ka Gera and Hampta Top (Manali region)
Habitat: Wild
Plant habit: Herb
Flowers were mostly seen dried (Rusty red) and few spikes were with Pink coloured flower clusters.


Very attractive pictures…thanks …


 
Polygonum affine/ Bistorta affinis  en-route Hemkund Sahib.
(Family: Polygonaceae).


Yes,  an eye catching herb of a beautiful habitats…  Nice inages …


 

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Polygonaceae Fortnight: Polygonum affine from Valley of Flowers-MN1 : 3 posts by 3 authors. 1 image.  

Himalayan Fleeceflower, Himalayan knotweed

Place : Valley of Flowers, Uttarakhand

This beautiful herb was recorded from near Hemkunt Sahib..
Polygonum affine


Beautifully illustrated! Thanks for sharing …


 

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Kindly find below images of Bistorta affinis from GHNP, Kullu, Himachal Pradesh.


Beautiful thicket of this alpine beauty. 


 

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POLYGONACEAE FORTNIGHT 1-14 May 2014: Bistorta affinis from Uttarakhand_DSR_13 : 3 posts by 3 authors. Attachments (1).

Bistorta affinis (D.Don) Greene is a common prostrate shrub in alpine zones of Uttarakhand. It makes large thickets in meadows or among the boulders.
Photographed near Vasuki Tal, Kedarnath area, 4500m altitude.


What a lovely photo.. Thanks for transporting us to the higher Himalayas..


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Polygonaceae Fortnight: Bistorta affinis (D. Don) Greene from pl Validate-GSMAY50 : 2 posts by 2 authors. Attachments (1).

Bistorta affinis, B. vivipara or B. vaccinifolia, please validate
Photographed from Rhotang pass in Himachal Pradesh


Photo is not clear.. probably B. affine.


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Polygonaceae Fortnight: Bistorta affinis (D. Don) Greene from Kashmir pl Validate-GSMAY49 : 2 posts by 2 authors. Attachments (4).

I have failed to find distinct specimens of B. affine, B. vaccinofolia and B. vivipara
Photographed from Gulmarg Kashmir, please validate. 


Yes! B. affine! Thanks for sharing!


Requesting to please provide ID of these dried up flowers captured at the Rohtang pass, HP in October 2014.
Can these be Polygonum affine, is it possible to ID?


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.


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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 …


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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.

Please check for Bistorta affinis in eFI.


yes. another knotweed


 

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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”..


References:

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