a genus of evergreen trees of the conifer family Pinaceae. Although several other coniferous trees are commonly called firs, true firs are native to North and Central America, Europe, Asia, and northern Africa. Several species are useful as a source of timber, and a number are cultivated as ornamentals, including use as Christmas trees.

http://id.loc.gov/authorities/childrensSubjects/sj2021052554

Britannica Editors. "fir". Encyclopedia Britannica, 30 Jul. 2026, https://www.britannica.com/plant/fir. Accessed 19 August 2026.