Salix pyrifolia vs balsam willow

Salix pyrifolia and balsam willow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Salix pyrifolia	Yes	No	No	No
balsam willow	Yes	No	No	No

As nouns, Salix pyrifolia and balsam willow are synonyms defined as:

Salix pyrifolia and balsam willow: small shrubby tree of eastern North America having leaves exuding an odor of balsam when crushed

Salix pyrifolia (noun)	balsam willow (noun)
small shrubby tree of eastern North America having leaves exuding an odor of balsam when crushed	small shrubby tree of eastern North America having leaves exuding an odor of balsam when crushed