brittle willow vs Salix fragilis

brittle willow and Salix fragilis both are nouns.

Word	Noun	Adjective	Verb	Adverb
brittle willow	Yes	No	No	No
Salix fragilis	Yes	No	No	No

As nouns, brittle willow and Salix fragilis are synonyms defined as:

brittle willow and Salix fragilis: large willow tree with stiff branches that are easily broken

Other synonyms of brittle willow include crack willow, snap willow.

brittle willow (noun)	Salix fragilis (noun)
large willow tree with stiff branches that are easily broken	large willow tree with stiff branches that are easily broken