Aster tataricus L.f., Suppl. Pl. 373 . (Syn: Aster bracteatus Turcz. ex Herd.; Aster conspicuus Fisch. ex Turcz. (ambiguous synonym); Aster fauriei H. Lév. & Vaniot; Aster intybaceus Kunth & Bouché   

China (Anhui, Gansu, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Jilin,
Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan), North Korea,
South Korea, Siberia (C-Siberia), Siberia (E-Siberia), Russian Far East, Japan
(Honshu, Kyushu), Mongolia, USA (I) (Alabama (I), Connecticut (I), Delaware (I),
Georgia (I), Illinois (I), Iowa (I), Kentucky (I), Massachusetts (I), Michigan
(I), New Jersey (I), North Carolina (I), Ohio (I), Pennsylvania (I), R.I . (I),
Tennessee (I), West Virginia (I))
as per Catalogue of Life;


Seen at the ABG.

Aster Species?


May be Tripolium sp. Check with special emphasis on Tripolium pannonicum. 



Thanks for suggesting the id.
Similar flowers in a different color were labelled as Tatarian Daisy, Aster tataricus ‘Jindai’.
This could be something close.