title: [2 weakly cardiotonic plants:  Penstemon barbatus Nutt.  and P.  digitalis Nutt.  [Scrophulariaceae].
mesh_terms: D000818:Animals; D002301:Cardiac Glycosides / Q000032:analysis / Q000494:pharmacology / Q000633:toxicity; D002855:Chromatography, Thin Layer; D004071:Digitalis Glycosides / Q000494:pharmacology; D005419:Flavonoids / Q000032:analysis; D006321:Heart / Q000187:drug effects*; D051379:Mice; D010946:Plants, Medicinal; D013053:Spectrophotometry
chemical_list: D002301:Cardiac Glycosides; D004071:Digitalis Glycosides; D005419:Flavonoids
vernacular_title: Sur deux plantes faiblement cardiotoniques : Penstemon baratus Ntuu. et P. digitalis Nutt. (Scrofulariacées)