Blumea macrostachya DC., Prodr. 5: 442 (1836) (syn: Baccharis auriculata Wall. ex DC. ; Blumea chevalieri Gagnep. ; Blumea hieraciifolia var. macrostachya (DC.) Hook.f. ; Blumea subsericans Elmer ; Conyza macrostachya Wall. );
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S. China to Tropical Asia: Assam, Bangladesh, Cambodia, China South-Central, China Southeast, East Himalaya, Hainan, India, Laos, Lesser Sunda Is., Malaya, Myanmar, Nepal, New Guinea, Philippines, Sumatera, Thailand, Vietnam as per POWO;
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Date : 31 March 2017
Appears close to Blumea species to me.
Pl. check with comparative images at Blumea. Also check with images at Blumea aromatica DC.
Thank you for the ID. Blumea aromatica Wall. ex DC. (accepted name)
I think more close to images at Blumea hieraciifolia
the above Photos belong to Blumea macrostachya DC.
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References:
POWO Catalogue of Life eFlora of Thailand Annotated checklist of Flowering plants of Nepal India Flora Online India Biodiversity Portal