Blue spruce (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Blue spruce" in English language version.

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  • Farjon, A. (2013). "Picea pungens". IUCN Red List of Threatened Species. 2013: e.T42333A2973433. doi:10.2305/IUCN.UK.2013-1.RLTS.T42333A2973433.en. Retrieved 19 November 2021.
  • Wajs-Bonikowska, Anna; Szoka, Łukasz; Karna, Ewa; Wiktorowska-Owczarek, Anna; Sienkiewicz, Monika (March 2017). "Composition and Biological Activity of Picea pungens and Picea orientalis Seed and Cone Essential Oils". Chemistry & Biodiversity. 14 (3). doi:10.1002/cbdv.201600264. PMID 27735132.
  • "blue spruce". Oxford English Dictionary (Online ed.). Oxford University Press. doi:10.1093/OED/7006545120. (Subscription or participating institution membership required.)
  • "Colorado spruce". Oxford English Dictionary (Online ed.). Oxford University Press. doi:10.1093/OED/1207804688. (Subscription or participating institution membership required.)
  • Dixon, Helen (1935). "Ecological Studies on the High Plateaus of Utah". Botanical Gazette. 97 (2): 272–320. doi:10.1086/334554. JSTOR 2471603. S2CID 84538967.
  • Watson, Gary; Sydnor, T. Davis (1 May 1987). "The Effect of Root Pruning on the Root System of Nursery Trees". Arboriculture & Urban Forestry. 13 (5): 126–130. doi:10.48044/jauf.1987.027. Retrieved 5 October 2024.
  • Johnson 2014, p. 2. Johnson, David W. (2014). "Picea pungens". In Stimm, Bernd; Roloff, Andreas; Lang, Ulla M.; Weisgerber, Horst (eds.). Enzyklopädie der Holzgewächse: Handbuch und Atlas der Dendrologie [Encyclopedia of Woody Plants: Handbook and Atlas of Dendrology] (in German). Weinheim, Germany: Wiley. pp. 1–8. doi:10.1002/9783527678518. ISBN 978-3-527678518. OCLC 900416230.

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  • Farjon, A. (2013). "Picea pungens". IUCN Red List of Threatened Species. 2013: e.T42333A2973433. doi:10.2305/IUCN.UK.2013-1.RLTS.T42333A2973433.en. Retrieved 19 November 2021.

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  • NatureServe (2024). "Picea pungens". Arlington, Virginia. Retrieved 7 September 2024.

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pubmed.ncbi.nlm.nih.gov

  • Wajs-Bonikowska, Anna; Szoka, Łukasz; Karna, Ewa; Wiktorowska-Owczarek, Anna; Sienkiewicz, Monika (March 2017). "Composition and Biological Activity of Picea pungens and Picea orientalis Seed and Cone Essential Oils". Chemistry & Biodiversity. 14 (3). doi:10.1002/cbdv.201600264. PMID 27735132.

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plants.sc.egov.usda.gov

usna.usda.gov

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yale.edu

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