Aster (genus) 紫菀属
（重定向自Michaelmas Daisy）
![](/Images/godic/202501/27/Asteraceae_-_Aster_amellus0853.JPG")
![Aster alpinus is the only species of Aster (sensu stricto) that grows natively in North America; it is found in mountains across the Northern Hemisphere.](/Images/godic/202501/27/Aster-alpinus0853.JPG")
![紫菀 Aster tataricus](/Images/godic/202501/27/Aster_Tataricus0854.JPG")
![](/Images/godic/202501/27/AsterNovi-belgii-flower-1mb0854.jpg")
Aster is a genus of flowering plants in the family Asteraceae. Its circumscription has been narrowed, and it now encompasses around 180 species, all but one of which are restricted to Eurasia; many species formerly in Aster are now in other genera of the tribe Astereae.