Bidens bipinnata L., Sp. Pl.: 832 (1753) 832 1753. (Syn: Bidens bipinnata var. biternatoides Sherff; Bidens cicutifolia Tausch; Bidens decomposita Wall. ex DC. (ambiguous synonym); Bidens elongata Tausch; Bidens fervida; Bidens myrrhidifolia Tausch; Bidens pilosa var. bipinnata (L.) Hook. fil.; Bidens pilosa var. decomposita (Wall. ex DC.) Hook. fil.; Bidens wallichii DC.; Kerneria bipinnata (L.) Gren. & Godr.);     
Canada (New Brunswick, Ontario), USA (Alabama, Arizona, Arkansas, Connecticut,
District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas,
Kentucky, Louisiana, Maryland, Mississippi, Missouri, Nebraska, New Jersey, New
Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island,
South Carolina, Tennessee, Texas, Virginia, West Virginia), Japan (I) (Honshu
(I)), Australia (I) (Western Australia (I), Northern Territory (I), Queensland
(I), New South Wales (I)), South Africa (I) (widespread), Swaziland (I), Lesotho
(I), Namibia (I), Madagascar (I), Benin (I), Mauritania (I), Botswana (I),
Zimbabwe (I), Cameroon (I), Burkina Faso (I), Guinea (I), Togo (I), Ivory Coast
(I), Mali (I), Senegal (I), Mauritania (I), New Caledonia (I), China (I) (Anhui
(I), Fujian (I), Gansu (I), Guangdong (I), Guangxi (I), Guizhou (I), Hainan (I),
Hebei (I), Heilongjiang (I), Henan (I), Hubei (I), Hunan (I), Jiangsu (I),
Jiangxi (I), Jilin (I), Liaoning (I), Nei Mongol (I), Shaanxi (I), Shandong (I),
Shanxi (I), Sichuan (I), Yunnan (I), Zhejiang (I)), Taiwan (I), Tibet (I), Egypt
(I) (SE-Egypt (I)), Saudi Arabia (I) (Asir (I)), East Aegaean Isl. (I), Cape
Verde Isl. (I) (Santo Antao Isl. (I), Sao Vicente Isl. (I), Ilha de Sao Nicolau
(I), Ilha de Maio (I), Ilha de Sao Tiago (I), Fogo Isl. (I), Ilha Brava (I)),
Jammu & Kashmir (I), Pakistan (I), Pakistani Kashmir (I), India (I)
(Himachal Pradesh (I), Indian Punjab (I), Uttar Pradesh (I)), Bhutan (I),
Darjeeling (I), Sikkim (I), Nepal (I),
Malaysia (I), Vietnam (I), North Korea
(I), South Korea (I), Philippines (I), New Guinea (I), Thailand (I), England
(I), France (I), Spain (I), Belgium (I), Germany (I), Switzerland (I), Italy
(I), Sicily (I), Hungary (I), Slovenia (I), Montenegro (I), Romania (I),
Bulgaria (I), Cyprus (I), Estonia (a), European Russia (I), Georgia [Caucasus]
(I), S-Brazil (I), Colombia (I)
as per Catalogue of Life;
Keys as per Flora of China:
Leaflet margin entire, sometimes ciliolate; leaves 2- or 3-pinnatisect, terminal leaflet narrow.   9 B. bipinnata
Leaflet margin prominently serrate; leaves subpinnately divided, terminal leaflet broad, ovate.   10 B. biternata
 
This species is quite distinct from related species B. biternata in shorter spreading habit usually less than 80 cm tall, bipinnatisect leaves, with much smaller segments, margin entire; heads with 1-5 yellow ray florets; cypselae 10-14 mm long with 2-4 mm long barbate 2-4 awns.
 
Annual herb differentiated from other species by 2-3-pinnatisect leaves with smaller and narrower segments with entire margins, heads withour ray florets or with few yellow to pale yellow ray florets; involucre bracts linear without dilated apex, and fewer achenes.
 

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Bidens bipinnata L., Sp. Pl. 832. 1753
Common name: Spanish needles
This species is quite distinct from related species B. biternata in shorter spreading habit usually less than 80 cm tall, bipinnatisect leaves, with much smaller segments, margin entire; heads with 1-5 yellow ray florets;
cypselae 10-14 mm long withj 2-4 mm long barbate 2-4 awns.

Photographed from near Kalsi on Mussoorie Chakrata road on September 16, 2011, and near Dakpathar

Yes …, I was looking for this plant for a long time. It is one thing to read keys and descriptions in books, and another to see the plant yourself. Now I know I wont confuse between B. bipinnata and B. biternata.


Bidens bipinnata L., Sp. Pl. 2: 832. 1753.

Annual herb differentiated from other species by 2-3-pinnatisect leaves with smaller and narrower segments with entire margins, heads withour ray florets or with few yellow to pale yellow ray florets; involucre bracts linear without dilated apex, and fewer achenes.
Photographed along Chakrata road, near Kalsi.


Thanks sir for showing this, I will try and find out this in my archives, this is a common plant, should have been shot by me..


Yes It was very common in Chakrata area.


 

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ID help : 4 posts by 3 authors.  

I see this wild fern whose shape from top reminds me of a snowflake. Today, I noticed a plant with yellow flowers and thought it might help in identification. I am attaching two photographs, one of them a detail of the flower. I seek your expert advise.
Photographed above Mcleodganj, Dharamshala, HP
About 1700m 


Seems like Bidens bipinnata..


… has already suggested that it is Spanish Needles or Budens bipinnata. I agree with him.



Bidens bipinnata L. : 3 posts by 2 authors. Attachments (9)

Location:  Suryavinayak, Bhktapur, Nepal
Date: 7 October 2017

Elevation : 4800 ft.



 

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Kalatope id 240611a: I have been observing this flower for ages and at first I thought that it was yet to bloom… but it seems that I am never there to view all the petals on the flower… or is it the way it is…

Location Kalatope, Chamba
Altitude 2100 mts
Habit Herb
Habitat wild
Height 12-14 inches

Bidens wallichii now known as B. bipinnata 


Yes, It is Bidens bipinnata from family Asteraceae, an annual plant  


 

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Bidens bipinata ABAUG01/26 : 1 post by 1 author. 4 images.

Took some closeups of the Spanish Needles flowers to share.
Bidens bipinnataSpanish Needles
Above Mcleodganj, Dharamshala, HP
1800m
24 August 2015


Id please
Small herb, height 12-15inches
At kanakeshwar, Alibag


it can be Either Bidens biternata or Bidens bipinnata-Asteraceae


look like Bidens pilosa


The leaves are of B. biternata (Lour.) Merr. & Sherff. Bidens pilosa Linn. is not supposed to be growing in India.


Certainly it is Bidens biternata. It is Annual herb leaves usually 5-foliated.

I am sending recent photo  (30.8.2009) from smiriti van, jaipur.

1 image.


I think it is Bidens bipinnata L. as per keys and details herein.

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please give some clue to trace the identity of this plant.
Locality: On way to Thoseghar, after Sajjangad diversion, Satara, Maharashtra
Habit: Herbs, up to 2 feet high
Stem: Quandrangular, hairy, green
Leaves: Pinnatisect, hairy appressed.
Flowers: Bright Yellow coloured, 2 cm across

May be Bidens…perhaps clear pics can help..


Seems to be Bidens biternata (Lour.) Merr. & Sheriff.


First two images appears to be of Bidens bipinnata L. as per keys and details herein.


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Bidens bipinnata L. : 6 posts by 2 authors. Attachments (4)- 1  b or more. 

Location: Sundarijal, Kathmandu
Date: 30 September  2019
Elevation: 1577 m.

Habit : Wild


Attachments (1)- 4 mb. 


Attachments (1)- 3 mb. 


Attachments (1)- 6 mb. 


Close up photographs are just great ! 

Bidens biternata I think, based on leaf structure ! 



References:

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