Symphyotrichum Nees. American Aster.
A genus of about 90-100 species, of North America.
Key to subgenus Astropolium based on Nesom (2005b).
Ref: Brouillet & Semple (1981); Brouillet et al. (2006) In Flora of North America Editorial Committee (2006b); Campbell & Seymour (2014); Cronquist (1980); Haines (2010); Holmes & Singhurst (2021); Jones (1980a); Jones (1980b); Jones (1983); Jones (1984); Jones (1992); Jones & Young (1983); Jones, Witsell, and Nesom (2008); Kauffman et al. (2004); Kral (1983a); Lamboy (1987); Lamboy (1992); Medley (2021a); Nesom (1993a, 1993b, 1994, 1997); Nesom (1994a); Nesom (1994b); Nesom (1997a); Nesom (1997b); Nesom (2005b); Nesom (2006oo); Nesom (2007); Noyes & Rieseberg (1999); Reveal & Keener (1981); Semple (2019); Semple & Brouillet (1980a); Semple & Brouillet (1980b); Semple & Chmielewski (1987); Semple, Chmielewski, & Lane (1989); Semple, Heard, & Xiang (1996); Sundberg (2004); Ward (2012a); Warners & Laughlin (1999); Xiang & Semple (1996). Show full citations.
Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.
© Bruce A. Sorrie | 
© Scott Ward | 
© Keith Bradley | 
© Keith Bradley | 
© Alan Cressler: symphyotrichum priceae, limestone glade 3, chickamauga and chattanooga national military park, catoosa county, georgia 2 by Alan Cressler | Symphyotrichum kentuckiense source | Original Image ⭷
© Jim Brighton | 
© Scott Ward | 
© Gary P. Fleming | 
© Paul Marcum | 
© Richard & Teresa Ware | Symphyotrichum novae-angliae CC-BY-NC, permission granted to NCBG | Original Image ⭷