Calamagrostis × acutiflora, called feather reed-grass, is a naturally occurring hybrid species of grass in the genus Calamagrostis, occasionally found in Europe and Asia.[2] Its cultivar 'Karl Foerster' has gained the Royal Horticultural Society's Award of Garden Merit.[3]

It is a hybrid of Calamagrostis arundinacea and Calamagrostis epigejos, both widespread Eurasian species.

References

  1. ^ J.B.A.M.de Lamarck & A.P.de Candolle, Fl. Franç., ed. 3, 5: 255 (1815)
  2. ^ a b "Calamagrostis × acutiflora (Schrad.) DC". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. 2017. Retrieved 22 February 2021.
  3. ^ "Calamagrostis × acutiflora 'Karl Foerster' feather reed-grass 'Karl Foerster'". The Royal Horticultural Society. Retrieved 22 February 2021. Synonyms; Calamagrostis 'Stricta'