Christmas tree
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A Christmas tree is a decorated tree, usually an evergreen conifer such as a spruce, pine or fir, associated with the celebration of Christmas. It may also be an artificial tree of similar appearance.
Christmas tree decorated with lights, stars, and glass balls
Glade jul by Viggo Johansen (1891), showing a Danish family's Christmas tree
North American family decorating Christmas tree (c. 1970s)
Martin Luther is depicted with his family and friends in front of a Christmas tree on Christmas Eve.
Fir
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Firs are evergreen coniferous trees belonging to the genus Abies in the family Pinaceae. There are approximately 48–65 extant species, found on mountains throughout much of North and Central America,
Christmas tree
…A Christmas tree is a decorated tree, usually an evergreen conifer such as a spruce, pine or fir, associated with the celebration of Christmas. It may also be an artificial tree of similar appearance. The custom was developed in Central Europe…
Abies koreana
A. alba – the underside of leaves have two whitish strips formed by wax-covered stomatal bands, while their bases are shaped like suction cups.
A. grandis foliage – upper side of the leaves, showing the leaves lying flat either side of the shoot
Foliage of A. pinsapo showing the radial leaf arrangement in this species