Symphyotrichum ontarionis var. ontarionis

Symphyotrichum ontarionis (Wieg.) Nesom var. ontarionis is the more southern race of the species

Brouillet, L., J.C. Semple, G.A. Allen, K. Chambers and S. Sundberg. 2006. Symphyotrichum Nees. pp. 465-539. In Flora North America Editorial Committee, eds. Flora of North America. Vol. 20. Asteraceae, Part 2. Astereae and Senecioneae. Oxford University Press, New York.

Revised 5 May 2021 by J.C. Semple