design-is-fine:Franz Eugen Köhler, Hops, Humulus lupulus, 1883-1914. From the book Medizinal-Pflanze
design-is-fine:Franz Eugen Köhler, Hops, Humulus lupulus, 1883-1914. From the book Medizinal-Pflanzen, Gera, Germany. Source.Cannabaceae is a small family of flowering plants, including cannabis and hops. -- source link