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Thuja

Thuja
Thuja standishii foliage and cones
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Cupressales
Family: Cupressaceae
Subfamily: Cupressoideae
Genus: Thuja
L.
Type species
Thuja occidentalis
L.

Thuja (/ˈθjuːdʒə/ THEW-jə)[1] is a genus of coniferous tree or shrub in the Cupressaceae (cypress family). There are five species in the genus, two native to North America and three native to eastern Asia.[2][3][4][5] The genus is monophyletic and sister to Thujopsis. Members are commonly known as arborvitaes (from the Latin term for 'tree of life'), thujas or cedars.[6]

  1. ^ Sunset Western Garden Book, 1995:606–607
    "Thuja". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  2. ^ "Thuja". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  3. ^ Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Kew: Royal Botanic Gardens. ISBN 978-1-84246-068-9.
  4. ^ Earle, Christopher J., ed. (2018). "Thuja". The Gymnosperm Database.
  5. ^ Fu, Liguo; Yu, Yong-fu; Adams, Robert P.; Farjon, Aljos. "Thuja". Flora of China. Vol. 4 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  6. ^ USDA, NRCS (n.d.). "Thuja". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 December 2015.

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