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Taxon: Cupressus ×leylandii A. B. Jacks. & Dallim.

Genus: Cupressus
Family: Cupressaceae
Nomen number: 404809
Place of publication: Bull. Misc. Inform. Kew 1926:114, t. 7, fig. 1926
Link to protologue:
Comment: [= C. nootkatensis × C. macrocarpa]
Name Verified on: 13-May-2012 by ARS Systematic Botanists.
Accessions: 4 (1 active, 0 available) in National Plant Germplasm System

Autonyms (not in current use), synonyms and invalid designations:

(≡ homotypic synonym, = heterotypic synonym, - autonym, I invalid designation)

Common names:

Economic Importance:

  • Environmental: ornamental (fide Eur Gard F, as Cupressocyparis leylandii; Dict Gard, as Cupressocyparis leylandii)
  • Social:
  • Vertebrate poisons: mammals (as Cupressocyparis leylandii)

Distributional Range:

    Cultivated (only cult.)


  1. Farjon, A. et al. 2002. A new genus and species in Cupressaceae (Coniferales) from northern Vietnam, Xanthocyparis vietnamensis. Novon 12:188. Note: = ×Cuprocyparis leylandii (A. B. Jacks. & Dallim.) Farjon
  2. Little, D. P. 2006. Evolution and circumscription of the true cypresses (Cupressaceae: Cupressus). Syst. Bot. 31:474. Note: = Callitropsis ×leylandii (A. B. Jacks. & Dallim.) D. P. Little

Check other web resources for Cupressus ×leylandii A. B. Jacks. & Dallim. :

  • Mansfeld: Mansfeld's World Databas of Agricultural and Horticultural Crops
  • ICRA: International Cultivar Registration Authority (on-line resource). for Cupressus x leylandii cultivars
  • ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
  • AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
  • Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.
  • PubAg: USDA's National Agricultural Library database of full-text journal articles and citations on the agricultural sciences.

Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2020. Germplasm Resources Information Network (GRIN-Taxonomy).
National Germplasm Resources Laboratory, Beltsville, Maryland. URL: https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=404809. Accessed 5 July 2020.