Any of several Eurasian and North American plants of the genus Arnica (family Asteraceae (Compositae)); especially A. montana, of mountains in central Europe.
Origin
Mid 18th century.
Definition of mountain tobacco in US English:
mountain tobacco
noun
Any of several Eurasian and North American plants of the genus Arnica (family Asteraceae (Compositae)); especially A. montana, of mountains in central Europe.