Symphyotrichum subulatum

Symphyotrichum subulatum (Michaux) G. L. Nesom is a coastal species native to North America. Five varieties of Symphyotrichum subulatum are recognized for North America based on differences in chromosome number, ray lamina color and size, array shapes, number of series of ray florets, number of disc and ray florets, and other, more cryptic characters (S.D. Sundberg 2004). These varieties were treated as species by G. L. Nesom (1994b, 2005d).