Helianthus strumosus Linnaeus. Roughleaf Sunflower. Phen: Late Jul-Sep. Hab: Woodlands and roadsides. Dist: ME, MN, and KA south to ne. FL, Panhandle FL, and TX.

Origin/Endemic status: Native

Synonymy: = Ar, C, F, Fl7, FNA21, G, GrPl, Il, K1, K3, K4, Mi, NE, NY, Oh3, Pa, RAB, SE1, Tn, Va, W, WH3, WV; > Helianthus montanus E.Watson – S; > Helianthus saxicolus – S; > Helianthus strumosus L. – S

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