Symphyotrichum lanceolatum var. latifolium

Southern Panicled Aster

SymphyotrichumÌýlanceolatumÌý(Willdenow) G. L. NesomÌývar.latifoliumÌý(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;Ìý). Leaf blades are broadly oblanceolate (not much reduced in inflorescences) and the margins are usually serrate.Ìý It is the more southern race ofÌýSy. lanceolatum. The variety is hexaploid 2n=64.

Symphyotrichum lanceolatum latifolium range draft JCS

Brouillet, L., J.C. Semple, G.A. Allen,Ìý K. Chambers and S. Sundberg. 2006.ÌýSymphyotrichumÌýNees. 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

Symphyotrichum lanceolatum latifolium MD
Symphyotrichum lanceolatum latifolium inflor MD
Symphyotrichm lanceolatum var latifolium lvs hds, MD
Symphyotrichum lanceolatum var. latifolium Ch & H 289 WAT, holotype

1-4. Symphyotrichum lanceolatumÌývar. latifolium.Ìý1-3. Shoots, inflorescence, upper stem leaves and heads, Maryland. 4. Inflorescence, Chmielewski & Hart 289 WAT, holotype, York Co., Pennsylvania.