#achillea  any of several plants of the genus Achillea native to Europe and having small white flowers in flat-topped flower heads
  supertype:  herbaceous_plant__herb  a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
  member of:  genus_Achillea
  subtype:  yarrow__milfoil__Achillea_millefolium  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
  subtype:  sneezeweed_yarrow__sneezewort__Achillea_ptarmica  Eurasian herb having loose heads of button-shaped white flowers and long gray-green leaves that cause sneezing when powdered

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