Helenium autumnale Linnaeus. Common Sneezeweed. Phen: Aug-Oct. Hab: Moist pastures, forests, woodlands, forest edges. Dist: QC west to BC, south to n. peninsular FL, TX, and CA.

Origin/Endemic status: Native

Taxonomy Comments: The taxa included here as synonyms (see synonymy) need additional study; Helenium autumnale as currently circumscribed may well include several taxa warranting taxonomic recognition. The combined range is not biogeographically coherent.

Other Comments: Like H. amarum, H. autumnale is bitter and unpalatable to grazing animals, becoming more abundant in pastures.

Synonymy: = Ar, Fl7, FNA21, GrPl, K3, K4, Mi, NcTx, NE, NY, Oh3, Pa, RAB, Tn, Va, WH3; < Helenium autumnale L. – GW2, W; > Helenium autumnale L. var. autumnale – C, F, G, Il, K1, SE1, WV, Fernald (1943); > Helenium autumnale L. var. canaliculatum (Lam.) Torr. & A.Gray – F, Fernald (1943); > Helenium autumnale L. var. parviflorum (Nutt.) Fernald – F, Il, K1, WV, Fernald (1943); > Helenium latifolium Mill. – S, Tat; > Helenium parviflorum Nutt. – S, Tat

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW
• Eastern Mountains and Piedmont: FACW
• Great Plains: FACW
• Midwest: FACW
• Northcentral & Northeast: FACW

Heliophily: 7