Achillea millefolium Achillea millefolium /əˈkɪliə mɪˈlɛfoʊliəm/

noun

1. Ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North America  ( Achillea millefolium , milfoil , yarrow )
   ubiquitous strong-scented mat-forming Eurasian herb of wasteland, hedgerow or pasture having narrow serrate leaves and small usually white florets; widely naturalized in North America