Assertion: verbena's leaf | /r/ObjectUse | used as tonic
Facets:
Source sentences:
text: The leaves and roots of Blue Vervain herb are a valuable alternative medicine used as an antidiarrheal, analgesic, anthelmintic, antiperiodic, astringent, diaphoretic, emetic, emmenagogue, expectorant, sedative, tonic, vermifuge, vulnerary.