white fir
Refers to the tree species Abies concolor. Botanical term; in everyday contexts, often written in katakana.
The white fir is an evergreen conifer native to North America.
Katakana spelling is common for plant names; usually written in kana.
Kanji form is rare; 樅 is not a jōyō kanji. Usually written in kana.
Compound of 白 (shiro, 'white') and 樅 (momi, 'fir'). The exact historical derivation is uncertain, but the name likely refers to the pale bark or foliage of the tree.