Editing Aster (genus) (section)

==Circumscription==
{{Main|List of Aster synonyms|l1=List of ''Aster'' synonyms}}
[[File:Aster flower.jpg|thumb|Multi layer petals Aster flower]]
The genus ''Aster'' once contained nearly 600 species in Eurasia and North America, but after [[Morphology (biology)|morphologic]] and molecular research on the genus during the 1990s, it was decided that the North American species are better treated in a series of other related genera. After this split there are roughly 180 species within the genus, all but one being confined to Eurasia.<ref name=fnatribe>{{cite book |author=Luc Brouillet, Theodore M. Barkley & John L. Strother |chapter-url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=20538 |title=Flora of North America |chapter=Asteraceae Martinov tribe Astereae Cassini, J. Phys. Chim. Hist. Nat. Arts. 88: 195. 1819 |page=3}} in [[#FNA|Flora of North America]].</ref>

The New World species have now been reclassified in the genera ''[[Almutaster]]'', ''[[Canadanthus]]'', ''[[Doellingeria]]'', ''[[Eucephalus (plant)|Eucephalus]]'', ''[[Eurybia (plant)|Eurybia]]'', ''[[Ionactis]]'', ''[[Oligoneuron]]'', ''[[Oreostemma]]'', ''[[Sericocarpus]]'' and ''[[Symphyotrichum]]'', though all are treated within the same tribe, [[Astereae]]. The "China aster" is in the related genus ''[[Callistephus]]''. Regardless of the taxonomic change, most are still widely referred to as "asters", or "[[Michaelmas]] daisies", because of their typical blooming period.