On this link you can find out in detail:

http://booksc.org/s/?q=Flavonoids+Achillea+millefolium&t=0

Achillea millefolium contains phenolic compounds such as dicaffeoylquinic acids and flavonoids causing choleretic and spasmolytic effects contains. The flavonoids mainly occur as mono- and diglycosides of apigenin, luteolin, quercetin, rutin, centaureidin, casticin, acacetin, isorhamnetin and artemetin.

kaempferol, luteolin, apigenin read more :

Article Antioxidant activity, total phenolic and flavonoid content o...

Article Bio-effectiveness of the main flavonoids of Achillea millefo...

Article Leaf and flower head flavonoids of Achillea millefolium L. subspecies

Dear colleagues,

As you can see, what I gave you as flavonoids is a synthesis of several ancient and recent articles. And as Carol has shown, the composition of Achillea millefolium in flavonoids varies according to several ecological and other parameters.

Good luck to all ! Abderrahim alias Rachid

Thank you everyone for sharing your knowledge and your valuable opinions

I wish you success in your research work Nabarun

Abderrahim alias Rachid

The main flavonoIds Luteolin, Kaempferol, Apigenin etc..

On this link you can find out in detail:

http://booksc.org/s/?q=Flavonoids+Achillea+millefolium&t=0

Thank you Bakhodir S. Okhundedaev

Kaempferol, luteolin and apigenin are the main flavonoids present in Achillea millefolium.