*Achillea millefolium Linnaeus. Yarrow, Thousandleaf. Phen: Apr-Nov. Hab: Disturbed areas near ports. Dist: Native of Eurasia. Only a few collections of the European races of the Achillea millefolium aggregate are known in eastern North America, from near old port cities (J. Ramsey, pers. comm.).

Origin/Endemic status: Eurasia

Synonymy: = Ramsey, Robertson, & Husband (2008); = Achillea millefolium L. ssp. millefolium – C, G, GrPl; = Achillea millefolium L. var. millefolium – K1; < Achillea millefolium L. – FNA19, Mi, NY, Pa, RAB, SE1, Arriagada & Miller (1997); >< Achillea millefolium L. – F; < Achillea millefolium L. var. millefolium – Il

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
• Great Plains: FACU (taxonomic split from wetland indicator species)
• Midwest: FACU (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)