.
Common names: English: Para-cress, toothache plant; Hindi: Akarkar, Pipulka; Marathi: Pipulka, Akarkara; Kannada: Hemmugalu; Assamese: Pirazha
.
Annual decumbent herb with ovate to deltate 6-10 cm long leaves with narrowly winged up to 4 cm long petioles, margin dentate; heads solitary, discoid, on long peduncles, 11-17 mm in diam, 10-23 mm high; phyllaries 15-18, triseriate; disc florets, yellow, 5-merous; achenes 2-2.5 mm long, black, without cork-like margin, ciliate with straight hairs; pappus bristles inconspicuous, 2.
.  
Difference between Acmella calva, A. oleracea and A. paniculata as per research gate link;
.

Acmella oleracea (L.) R. K. Jansen,  Syst. Bot. Monogr. 8:65. 1985 syn: Spilanthes oleracea L.

The species is distinct in discoid capitula, without ray florets, ovate to deltoid leaves, leaf bases broad obtuse, truncate to slightly cordate; capitula cylindric large, more than 1 cm wide, yellow with reddish centre; involucral bracts 15-18, triseriate; mature achenes without evident cork-like margins.
Photographed from the Herbal Garden of Hamdard University in Delhi on May 8, 2011
Common names
English: Para-cress, toothache plant
Hindi: Akarkar, Pipulka
Marathi: Pipulka, Akarkara
Kannada: Hemmugalu
Assamese: Pirazha



Shot from Herbal Garden samalkha Panipat

Yes Acmella oleracea.
Try keeping the thalamus of the flower in mouth for sometime and spit it out.
Feel the tingling in your mouth its so cool!!! 


Yes .. used in toothache



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Location- Place, Altitude, GPS-Pune
Habitat- Garden/ Urban/ Wild/ Type-garden
Plant Habit- Tree/ Shrub/ Climber/ Herb- Plant
Height/Length- 1 foot
Leaves Type/ Shape/ Size- dark green
Flowers Size/ Colour/ Calyx/ Bracts- yellow with brown tops
Fruits Type/ Shape/ Size Seeds- not seen


Acmella oleracea, an important medicinal plant


After you identified it I surfed the net and found this information (from Wikipedia)
Acmella oleracea, also known under its old names Spilanthes oleracea and Spilanthes acmella and commonly referred to as Spilanthes Extract, is a flowering herb in the plant family Asteraceae, also known astoothache plant or paracress as the leaves and flower heads contain an analgesic agent spilanthol used to numb toothache.

It is native to the tropics of Brazil, where it is called Jambu, and is grown as an ornamental (and occasionally as a medicinal) in various parts of the world.
A small, erect plant, it grows quickly and sends up gold and red flower inflorescences. It is frost-sensitive but perennial in warmer climates.
Medical uses and effects
A decoction or infusion of the leaves and flowers is a traditional remedy for stammering, toothache, stomatitis,[1] and throat complaints.[citation needed]
Acmella oleracea extract has been tested against various yeasts and bacteria and was essentially inactive.[4]
Acmella oleracea has been shown to have a strong diuretic action in rats.[5]
Spilanthes extract has been discovered to aid in saliva stimulation (sialogogue) for people suffering from dry mouth (xerostomia).[citation needed] Its properties provide relief to dry mouth by enhancing saliva production.[citation needed]

Acmella oleracea extract is reported to reduce muscle tension when applied topically, and as such it aids to decrease facial lines and wrinkles that are partially caused by tense or contracted facial muscles. Application of
Acmella extract is reported to result in more relaxed facial muscle, and in turn in a decrease of visible wrinkles, ageing lines, “crows feet”, and it has been used under the name of Gatuline [5] as an non-injectable equivalent of Botox , thus without the toxic effects or the need to inject it under the skin; a cheap and easy to apply herbal Botox replacement. For culinary purposes, small amounts of shredded fresh leaves add a unique flavour to salads



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Flora of Haryana: Acmella oleracea from TDL Herbal Park Yamunanagar:  Acmella oleracea from TDL Herbal Park Yamunanagar


Break the thalamus and keep it on your toungue and feel the tingling.
Its good for teeth too.
Just try it, no harm or side effects. 

Yes … good medicine for toothache


Acmella oleracea (L.) R.K.Jansen, Syst. Bot. Monogr. 8. 65, 1985
Syn: Spilanthes oleracea L., Syst. Nat. 2: 534. 1767; Spilanthes acmella var. oleracea(L.) C. B. Clarke ex Hook.
Annual decumbent herb with ovate to deltate 6-10 cm long leaves with narrowly winged up to 4 cm long petioles, margin dentate; heads solitary, discoid, on long peduncles, 11-17 mm in diam, 10-23 mm high; phyllaries 15-18, triseriate; disc florets, yellow, 5-merous; achenes 2-2.5 mm long, black, without cork-like margin, ciliate with straight hairs; pappus bristles inconspicuous, 2.
Photographed from Hamdard University Herbal Garden New Delhi and TDL Herbal Garden Yamuna Nagar.

Thanks Sir for sharing the Original “Akarkara



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Asteraceae Fortnight Part 1-Radiate Heads: Spilanthes acmella confusion: 3-Acmella oleracea from Hamdard University Herbal Garden :  Attachments (3). 3 posts by 3 authors.

Acmella oleracea (L.) R.K.Jansen, Syst. Bot. Monogr. 8. 65, 1985

Syn: Spilanthes oleracea L., Syst. Nat. 2: 534. 1767; Spilanthes acmella var. oleracea (L.) C. B. Clarke ex Hook.

Annual decumbent herb with ovate to deltate 6-10 cm long leaves with narrowly winged up to 4 cm long petioles, margin dentate; heads solitary, discoid, on long peduncles, 11-17 mm in diam, 10-23 mm high; phyllaries 15-18, triseriate; disc florets, yellow, 5-merous; achenes 2-2.5 mm long, black, without cork-like margin, ciliate with straight hairs; pappus bristles inconspicuous, 2.

Photographed from Hamdard University Herbal Garden New Delhi and TDL Herbal Garden Yamuna Nagar.


Thank you very much … for this upload.

This plant is known for its medicinal values.


Thanks Sir for upload, this is effective against toothache..



 

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Asteraceae Week Part I-Radiate heads:- Acmella oleracea from Pune –MR16 : Attachments (1).  5 posts by 3 authors.

sharing pix of Acmella oleraceafrom Pune



 

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Asteraceae Week (Part I – Radiate heads) : Acmella oleracea :  Attachments (1). 2 posts by 2 authors.

Toothache Plant Flower – Acmella oleracea – Photo from a flower exhibition.


Yes very good photograph …



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ID Request 081214SG : 9 posts by 5 authors. Attachments (2)

Please help identify this herb 9” height.  Photo taken on 4Dec14 at Mohol, Maharashtra.


Anacyclus pyrethrum


leaves don’t match
Janak Ammal herbarium at the Indian Institute of Integral Medicine
has a herbaium specimen…http://www.iiim.res.in/herbarium/asteraceae/anacyclus_pyrethrum.htm
and without the petals I just don’t know what it might have been


Acmella oleracea.


Yes Samir diagnosed it

How could I forget, … had shown one: efi thread

very memorable floret..


Thanks all for correcting it


It is Spilanthes acmellaIndian Akarkara.


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Spilathes calva
Family: Asteraceae
Loc.: Itanagar, Arunachal Pradesh (ca 550m)
Uses: Leaves are boiled and eaten
Local name: Adi Marsang
Considered to be a good remedy for toothache.

I think this appears close to  Acmella oleracea (L.) R.K.Jansen  as per comparative images at  Acmella



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at mahim, Mumbai, maharashtraon 4th Jan 09; Panipat District- Oct’10?; Near DVC canal, Bhadreshwar, Hooghly, West Bengal: 15/12/2007 & 17/10/07; Lonavala on 18 Jan 2009; Chitrakoot (MP) 10-12-09; PLANT FOR IDENTIFICATION -41 – indiantreepix | Google Groups visit to Maharashtra Nature Park (MNP) on 4/1/09 – indiantreepix | Google Groups Akkalkadha – indiantreepix | Google Groups Asteraceae herb for id pls – efloraofindia | Google Groups

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