Science

This Is Not A Pine Tree

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True Pines (conifer trees in the genus Pinus) are often confused with other members of the Pinaceae family like Picea (Spruces), Abies (Firs), Pseudotsuga (Douglas-firs) or Larix (Larches). So is very likely that your Christmas tree is not a pine.
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Credits (and Twitter handles):

Script Writer: Henry Reich (@MinutePhysics)
Script Editor: Alex Reich (@alexhreich)
Video Illustrator: Ever Salazar (twitter:@eversalazar)
Video Director: Henry Reich
Narrator: Henry Reich
With Contributions From: Emily Elert (@eelert), Kate Yoshida (@KateYoshida) and Peter Reich

Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder
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Image Credits:

Christmas Tree – Ricardo Reitmeyer / Shutterstock

Fir Tree Snow – Allen McGregor
Solitary Fir

Douglas Fir – USDA (Public Domain)

Wolf – Arantza Ansotegui
wolf-142173

Fox – Peter Trimming
Young fox (1)

Canis mesomelas – Hans Hillewaert
https://commons.wikimedia.org/wiki/File:Canis_mesomelas.jpg

White Pine Pinus strobus – US FWS (Public Domain)

Ponderosa Pine – Wikimedia user Famartin
https://commons.wikimedia.org/wiki/File:2013-07-14_10_15_37_Ponderosa_Pine_along_the_lower_portion_of_Wheeler_Peak_Scenic_Drive.jpg

Stone Pine – Wikimedia user MPF
https://upload.wikimedia.org/wikipedia/commons/0/01/Pinus_pinea_foliage.jpg

Balsam Fir Needles – Homer Edward Price
Balsam-Fir-needles-(bottom)

Ponderosa Pine Cone – Flickr user S. Rae
https://www.flickr.com/photos/35142635@N05/16378627751

Douglas Fir Cones – Wikimedia user MPF
https://en.wikipedia.org/wiki/File:Pseudotsuga_menziesii_cone.jpg

Knobcone Pine Cone – Wikimedia user Geographer
https://commons.wikimedia.org/wiki/File:Knobcone_Pine_Cone.jpg

Ponderosa pine – Wikimedia user Clyde_frogg
https://commons.wikimedia.org/wiki/File:Ponderosa_Identification.jpg

Huangshan pine
https://de.wikipedia.org/wiki/Datei:Ying_Ke_Pine.JPG

Picea abies Norway Spruce – Ivar Leidus
https://en.wikipedia.org/wiki/File:Kuusk_Keila-Paldiski_rdt_%C3%A4%C3%A4res.jpg

Picea abies – Wikimedia user Qgroom
https://commons.wikimedia.org/wiki/File:Picea_abies1.JPG

Serbian Spruce – Flickr user F D Richards
Serbian Spruce, 1981

Picea Needles – Rudolf Schäfer
Fichte_Nadeln_DSC_6101

Norway Spruce Cone – Dave Hosford
Winter Trim

Abies Alba Silver Fir – Wikimedia user Crusier
https://commons.wikimedia.org/wiki/File:Abies_alba_Silesian_Beskids.jpg

Abies Alba Fir Cones – Jerzy Opiola
https://commons.wikimedia.org/wiki/File:Abies_alba_P26.jpg

Abies Alba Fir Needles – Böhringer Friedrich
https://en.wikipedia.org/wiki/File:Abies_alba,_Wei%C3%9F_Tanne_1.JPG

Pseudotsuga menziesii – Walter Siegmund
https://commons.wikimedia.org/wiki/File:Pseudotsuga_menziesii_28021.JPG

Douglas Fir Cones – Flickr user born1945
Douglas-fir Cones

Larch – Flickr user Björn S.
Larches in autumn

Winter Larch – Anneli Salo
https://commons.wikimedia.org/wiki/File:Larix_sibirica_-_Siperianlehtikuusi,_Sibirisk_l%C3%A4rk,_Siberian_larch_IMG_9213_C.JPG

Cathaya argyrophylla – Wikimedia user Daderot
https://commons.wikimedia.org/wiki/File:Cathaya_argyrophylla_-_Arnold_Arboretum_-_DSC06796.JPG

Tsuga heterophylla – JeanPol Grandmont
https://commons.wikimedia.org/wiki/File:Tsuga_heterophylla_%27Pendula%27_JPG.jpg

Keteleeria davidiana – Wikimedia user Daderot
https://commons.wikimedia.org/wiki/File:Keteleeria_davidiana_-_Quarryhill_Botanical_Garden_-_DSC03431.JPG

Cedrus – Jacinta lluch Valero
Cedrus

Pseudolarix amabilis – Jeffrey O. Gustafson
https://commons.wikimedia.org/wiki/File:Golden_Larch_Bonsai_Forest.JPG

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