Salix fragilis vs brittle willow

Salix fragilis and brittle willow both are nouns.

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

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

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

Other synonyms of Salix fragilis include crack willow, snap willow.

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