Salix cinerea vs grey willow

Salix cinerea and grey willow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Salix cinerea	Yes	No	No	No
grey willow	Yes	No	No	No

As nouns, Salix cinerea and grey willow are synonyms defined as:

Salix cinerea and grey willow: Eurasian shrubby willow with whitish tomentose twigs

Other synonyms of Salix cinerea include gray willow.

Salix cinerea (noun)	grey willow (noun)
Eurasian shrubby willow with whitish tomentose twigs	Eurasian shrubby willow with whitish tomentose twigs