balsam willow is a noun meaning "small shrubby tree of eastern North America having leaves exuding an odor of balsam when crushed". It carries one recorded sense.
small shrubby tree of eastern North America having leaves exuding an odor of balsam when crushed
Definitions, synonyms and semantic relations for balsam willow come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.