Arnoglossum atriplicifolium (Linnaeus) H. Robinson. Phen: Jun-Oct. Hab: Mesic forests, open woodlands and woodland edges, clearings, prairies, meadows. Dist: NY, MN, and NE south to Panhandle FL and LA (attribution to MA is in error, A.Haines, pers.comm.).
Origin/Endemic status: Native
Synonymy: = Ar, Fl7, FNA20, Il, K1, K3, K4, Mi, Mo2, NY, Ok, Pa, Tn, Va, WH3, Anderson (1998), Barkley (1999); = Cacalia atriplicifolia L. – C, F, G, GrPl, Oh3, RAB, SE1, W, Pippen (1978); = Mesadenia atriplicifolia (L.) Raf. – S