*Aethusa cynapium Linnaeus. Fool's-Parsley. Phen: Jun-Sep. Hab: Disturbed areas. Dist: Native of Eurasia. Introduced and naturalized in ne. United States, at least as far south as se. PA (Rhoads & Klein 1993), DE, and Pocahontas County, WV.
Origin/Endemic status: Eurasia
Taxonomy Comments: In Europe, several subspecies are often recognized (see synonymy); it is not well-understood how these entities relate to material naturalized in North America and for now we treat the species broadly.
Synonymy: = C, F, G, Il, K1, K3, K4, MC, Mi, NE, NY, Pa, WV; > Aethusa cynapium L. ssp. agrestis (Wallr.) Dostál – GBI3; > Aethusa cynapium L. ssp. cynapioides (M.Bieberstein) Arcang. – GBI3; > Aethusa cynapium L. ssp. cynapium – GBI3; > Aethusa cynapium L. ssp. gigantea (Lej.) P.D.Sell – GBI3
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