bearberry willow vs genus Salix

bearberry willow and genus Salix both are nouns.

Word	Noun	Adjective	Verb	Adverb
bearberry willow	Yes	No	No	No
genus Salix	Yes	No	No	No

bearberry willow (noun)	genus Salix (noun)
dwarf prostrate mat-forming shrub of Arctic and alpine regions of North America and Greenland having deep green elliptic leaves that taper toward the base	a large and widespread genus varying in size from small shrubs to large trees: willows