Emilia alstonii

Emilia alstonii Fosberg, 66 1972.;

Herbs; stems short, ascending. Leaves all cauline; lower leaves orbicular to reniform or ovate, rounded at apex, 4 x 2 cm, petioled; petiole scarcely or narrowly winged; middle leaves with terminal lobe orbicular or reniform, cordate, with broad winged petiole, clasping at the base; uppermost leaves more or less oblong or lanceolate, prominently undulate, dentate or crenate. Inflorescence simple, terminal, ebracteate. Capitula bright purple. Involucre cylindrical, ca 8 x 4 mm; bracts ca 8 mm long. Disc florets 12-13 mm long, 5-lobed; lobes 1.2-1.5 mm long. Anthers 0.6-0.8 mm long. Achenes 5-angled, minutely scabrid on the angles.
Flowering and fruiting: August-December
Grasslands and on wet rocks
South India and Sri Lanka
(Attributions- Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi)

Images by Subhanjan Kayet - Id by Prabhu Kumar KM & J.M.Garg 

pink flower for id request : 5 posts by 3 authors. Attachments (3)
October 2015, KERALA, MUNNAR
Seems to be Emilia alstonii pls check
I think it seems to match with the herbarium specimen at

Emillia sonchifolia for validation : 7 posts by 3 authors. Attachments (4)
Emillia sonchifolia perhaps
Eravikulam WLS, Munnar, Kerala,  in the Nilgiris
First week of October 2018

Yes, most probably it should be Emilia sonchifolia..

I find it closer to images at  Emilia alstonii Fosberg as per comparative images at Emilia 

Emilia sonchifolia 

Thanks, ... But to me these match with your post on Emilia alstonii Fosberg