| Achillea millefolium | 
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| Scientific classification | 
| Kingdom: | Plantae | 
 
| Clade: | Tracheophytes | 
 
| Clade: | Angiosperms | 
 
| Clade: | Eudicots | 
 
| Clade: | Asterids | 
 
| Order: | Asterales | 
 
| Family: | Asteraceae | 
 
| Genus: | Achillea | 
| Species: | A. millefolium | 
| Binomial name | 
| Achillea millefolium 
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| Synonyms | 
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Achillea albida Willd.
Achillea alpicola (Rydb.) Rydb. 
Achillea ambigua Boiss.
Achillea ambigua Pollini
Achillea anethifolia Fisch. ex Herder 
Achillea angustissima Rydb.
Achillea arenicola A.Heller
Achillea bicolor Wender. 
Achillea borealis Bong.
Achillea californica Pollard 	
Achillea ceretanica Sennen 
Achillea compacta Lam.
Achillea coronopifolia Willd.
Achillea crassifolia Colla
Achillea cristata Hort. ex DC.
Achillea dentifera Rchb.
Achillea eradiata Piper
Achillea fusca Rydb.
Achillea gigantea Pollard 
Achillea gracilis Raf.
Achillea haenkeana Tausch 
Achillea intermedia Schleich.
Achillea lanata Lam.
Achillea lanulosa Nutt.
Achillea laxiflora A.Nelson 
Achillea laxiflora Pollard & Cockerell 
Achillea magna All. 
Achillea magna L.
Achillea magna Haenke
Achillea marginata Turcz. ex Ledeb.
Achillea nabelekii Heimerl 	
Achillea occidentalis (DC.) Raf. ex Rydb.
Achillea ochroleuca Eichw. 
Achillea ossica K.Koch
Achillea pacifica Rydb.
Achillea palmeri Rydb.
Achillea pecten-veneris Pollard 
Achillea pratensis Saukel & R.Länger
Achillea pseudo-tanacetifolia Wierzb. ex Rchb.
Achillea puberula Rydb.
Achillea pumila Schur
Achillea rosea Desf.
Achillea setacea Schwein.
Achillea sordida (W.D.J.Koch) Dalla Torre & Sarnth.
Achillea subalpina Greene
Achillea submillefolium Klokov & Krytzka
Achillea sylvatica Becker 
Achillea tanacetifolia Mill.
Achillea tenuifolia Salisb. 
Achillea tenuis Schur
Achillea tomentosa Pursh 1813 not L. 1753 
Achillea virgata Hort. ex DC.
Achillios millefoliatus St.-Lag. 
Alitubus millefolium (L.) Dulac
Alitubus tomentosus Dulac
Chamaemelum millefolium (L.) E.H.L.Krause
Chamaemelum tanacetifolium (All.) E.H.L.Krause 
Chamaemelum tomentosum (L.) E.H.L.Krause
plus many more names for subspecies, forms, and varieties
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Achillea millefolium, commonly known as yarrow () or common yarrow, is a flowering plant in the family Asteraceae. Growing to 1 metre (3+1⁄2 feet) tall, it is characterized by small whitish flowers, a tall stem of fernlike leaves, and a pungent odor.
The plant is native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America. It has been introduced as a feed for livestock in New Zealand and Australia. Used by some animals, the plant may have somewhat toxic properties, although historically it has been employed for medicinal purposes.