Symphyotrichum lanceolatum var. latifolium

Southern Panicled Aster

Symphyotrichum lanceolatum (Willdenow) G. L. Nesom var.latifolium (Semple & Chmielewski) G. L. Nesom occurs in full sun to partial shade in thickets, edges of wet deciduous woods, margins of streams, and ditches in Canada and the US (Brouillet et al. 2006; FNA). Leaf blades are broadly oblanceolate (not much reduced in inflorescences) and the margins are usually serrate.  It is the more southern race of Sy. lanceolatum. The variety is hexaploid 2n=64.

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.

Last revised 14 May 2025 by J.C. Semple

© 2025 J.C. Semple, including all photographs unless otherwise indicated