Achillea tomentosa, commonly known as woolly yarrow, is a flowering plant in the family Asteraceae. It is sometimes kept as a garden plant, and occasionally naturalizes outside its original range of dry lowland habitats of southern Europe and (possibly) western Asia. It is a recipient of the Royal Horticultural Society's Award of Garden Merit.[2]

Achillea tomentosa
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Achillea
Species:
A. tomentosa
Binomial name
Achillea tomentosa
Synonyms
  • Alitubus tomentosus (L.) Dulac
  • Chamaemelum tomentosum (L.) E. H. L. Krause
  • Millefolium tomentosum (L.) Fourr.

Description

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Achillea tomentosa is quite similar in appearance to Achillea millefolium (common yarrow), but typically has yellow ligules, more numerous disc florets, and straw‑colored involucral bracts with translucent margins.[3] Additionally, A. tomentosa is diploid, unlike the polyploid common yarrow.[4]

Notes

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  1. ^ Achillea tomentosa Pursh is a synonym of Achillea millefolium var. occidentalis DC.

References

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  1. ^ Sp. Pl. 2: 897 (1753)
  2. ^ "Achillea tomentosa woolly yarrow". RHS. Retrieved 15 August 2019.
  3. ^ Ian R. Thompson (2007). "A taxonomic treatment of tribe Anthemideae (Asteraceae) in Australia" (PDF). Muelleria. 25: 21–58. doi:10.5962/P.292234. ISSN 0077-1813. Wikidata Q103967080.
  4. ^ Vetter, Stefan; Lambrou, Maria; Franz, Chlodwig; Ehrendorfer, Friedrich (1996). "Cytogenetics of experimental hybrids within the Achillea millefolium polyploid complex (yarrow)". Caryologia. 49 (1): 1–12. doi:10.1080/00087114.1996.10797344.