Abies lowiana and Silver fir

Abies lowiana noun - Medium to tall fir of central to western United States having a narrow erect crown and soft wood.

Silver fir and Abies lowiana are semantically related. In some cases you can use "Silver fir" instead a noun phrase "Abies lowiana".

Silver fir noun - Any of various true firs having leaves white or silvery white beneath.

Abies lowiana and silver fir are semantically related. Sometimes you can replace phrase "Abies lowiana" with "Silver fir", this phrases are similar.