John C. Semple    WAT                          

COURSES

RESEARCH

Asters 

Goldenasters 

Goldenrods 

RECENT PUBLICATIONS 

HOME

  Symphyotrichum sect. Turbinelli 

  Turbinate Aster 

Symphyotrichum turbinellum is a distinctive species within the genus because of its turbinate heads with somewhat keeled phyllaries, its unique base number of x=48 (a derived duodecaploid on x=8) and a distinctive open paniculiform inflorescence. The species was been treated as a relative of the eucephaloid asters (Jones 1980; Semple and Brouillet 1980).  Nesom (1994) placed it in Symphyotrichum, where Brouillet et al. (2001a, b) found it to be placed in their DNA sequence study. Brouillet et al. (2006) in Flora North America included the species in sect. Symphyotrichum and listed its position in a subsection as undetermined noting its often placement in sect. Turnbinelli (Rydb.) Semple.

Heads; robust plant cultivated in Waterloo, Ontario (originally from Missouri); wild plant in cedar glade in Missouri

Last update 5 November 2008 by J.C. Semple        © 2008, J.C. Semple