Helianthus microcephalus Torrey & A. Gray. Phen: Jul-Oct. Hab: Dry woodlands and roadbanks. Dist: PA west to MI, south to Panhandle FL and se. LA.
Origin/Endemic status: Native
Synonymy: = Ar, F, Fl7, FNA21, G, Il, K1, K3, K4, Mi, NE, Oh3, Pa, RAB, S, Tn, Va, W, WH3, WV; < Helianthus microcephalus Torr. & A.Gray – C, SE1