title: [The tannin producing substances of Ephedra helvetica (author's transl)].
mesh_terms: D001578:Benzopyrans / Q000032:analysis*; D002392:Catechin / Q000032:analysis*; D010946:Plants, Medicinal / Q000032:analysis* / Q000378:metabolism; D013634:Tannins / Q000096:biosynthesis*
chemical_list: D001578:Benzopyrans; D013634:Tannins; D002392:Catechin
vernacular_title: Die Gerbstoffbildner in Ephedra helvetica