Highperformance cultivar 'Harras' as a contribution to quality, efficacy and safety of comfrey (Symphytum x uplandicum Nyman) - Hochleistungssorte 'Harras' als Beitrag zu Qualität, Wirksamkeit und Sicherheit von Beinwell (Symphytum x uplandicum Nyman)


Schmidt, M.

Zeitschrift für Arznei- und Gewürzpflanzen 13(4): 182-184

2008


Comfrey (<i>Symphytum officinale</i> sensu lato) is a complex of hybrids of <i>Symphytum officinale</i> (sensu stricto) and <i>Symphytum asperum</i> and/or other species of <i>Symphytum</i>. The various hybrids, summarized under the botanical name <i>Symphytum</i> x <i>uplandicum</i>, differ in their phytochemical properties.