western yew vs Taxus brevifolia

western yew and Taxus brevifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
western yew	Yes	No	No	No
Taxus brevifolia	Yes	No	No	No

As nouns, western yew and Taxus brevifolia are synonyms defined as:

western yew and Taxus brevifolia: small or medium irregularly branched tree of the Pacific coast of North America; yields fine hard close-grained wood

Other synonyms of western yew include California yew, Pacific yew.

western yew (noun)	Taxus brevifolia (noun)
small or medium irregularly branched tree of the Pacific coast of North America; yields fine hard close-grained wood	small or medium irregularly branched tree of the Pacific coast of North America; yields fine hard close-grained wood