Fir (English Wikipedia)

Xiang, Xiaoguo; Cao, Ming; Zhou, Zhekun (October 2007). "Fossil history and modern distribution of the genus Abies (Pinaceae)". Frontiers of Forestry in China. 2 (4): 355–365. doi:10.1007/s11461-007-0058-4. Archived from the original on 2024-01-01. Retrieved 2023-02-15.

swallowtailfarms.com (Global: low place; English: low place)

Groth, Jacob (10 November 2000). "Monarch Migration Study". Swallowtail Farms. Archived from the original on 9 May 2022. Retrieved 21 July 2014.

tandfonline.com (Global: 286^th place; English: 209^th place)

Landry, Pierre (1984). "Synopsis du genre Abies". Bulletin de la Société Botanique de France. Lettres Botaniques (in French). 131 (3): 223–229. Bibcode:1984BSBFL.131..223L. doi:10.1080/01811797.1984.10824633.

treesandshrubsonline.org (Global: low place; English: low place)

"Abies Mill". International Dendrology Society. Retrieved 8 September 2025.
Christian, T. (2021). "Abies". Trees and Shrubs Online. Archived from the original on 2023-03-01. Retrieved 2023-03-01.

ucanr.edu (Global: low place; English: 6,567^th place)

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"Pests in Gardens and Landscapes". University of California Agriculture & Natural Resources: Statewide Integrated Pest Management Program. Retrieved 10 September 2025.

web.archive.org (Global: 1^st place; English: 1^st place)

"fir". Online Etymology Dictionary. Archived from the original on 2021-08-08. Retrieved 2020-10-01.
Arno, Stephen F.; Hammerly, Ramona P. (2020) [1977]. Northwest Trees: Identifying & Understanding the Region's Native Trees (field guide ed.). Seattle: Mountaineers Books. p. 125. ISBN 978-1-68051-329-5. OCLC 1141235469. Archived from the original on 2023-09-19. Retrieved 2022-02-26.
Xiang, Xiaoguo; Cao, Ming; Zhou, Zhekun (October 2007). "Fossil history and modern distribution of the genus Abies (Pinaceae)". Frontiers of Forestry in China. 2 (4): 355–365. doi:10.1007/s11461-007-0058-4. Archived from the original on 2024-01-01. Retrieved 2023-02-15.
Stull, Gregory W.; et al. (2021). "main.dated.supermatrix.tree.T9.tre". Figshare. doi:10.6084/m9.figshare.14547354.v1. Archived from the original on 2024-01-01. Retrieved 2023-03-30.
Groth, Jacob (10 November 2000). "Monarch Migration Study". Swallowtail Farms. Archived from the original on 9 May 2022. Retrieved 21 July 2014.
"Monarch Migration". Monarch Joint Venture. 2013. Archived from the original on 2017-10-31. Retrieved 2017-10-25.
Christian, T. (2021). "Abies". Trees and Shrubs Online. Archived from the original on 2023-03-01. Retrieved 2023-03-01.

wiley.com (Global: 150^th place; English: 174^th place)

bsapubs.onlinelibrary.wiley.com

Leslie, Andrew B.; et al. (2018). "ajb21143-sup-0004-AppendixS4" (PDF). American Journal of Botany. 105 (9): 1531–1544. doi:10.1002/ajb2.1143. PMID 30157290.

worldcat.org (Global: 4^th place; English: 4^th place)

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Torres, Leon Nahuel; Shi, Xiao; Na, Yuling; Wang, Bing; Tian, Chi; Chen, Jun (2024-03-01). "First study on fossil wood from the Middle Pleistocene of the Songliao Plain, Northeast China". Review of Palaeobotany and Palynology. 322 105063. Bibcode:2024RPaPa.32205063T. doi:10.1016/j.revpalbo.2024.105063. ISSN 0034-6667.
Arno, Stephen F.; Hammerly, Ramona P. (2020) [1977]. Northwest Trees: Identifying & Understanding the Region's Native Trees (field guide ed.). Seattle: Mountaineers Books. p. 125. ISBN 978-1-68051-329-5. OCLC 1141235469. Archived from the original on 2023-09-19. Retrieved 2022-02-26.

wur.nl (Global: 7,164^th place; English: 7,273^rd place)

library.wur.nl

Debreczy, Zsolt; Rácz, István; Musial, Kathy (2011). Conifers Around the World : Conifers of the Temperate Zones and Adjacent Regions. Budapest: DendroPress. ISBN 978-9632190617.

Fir (English Wikipedia)

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cnrtl.fr (Global: 938^th place; English: 6,622^nd place)

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