© JR Crellin, www.floralimages.co.uk; http://creativecommons.org/licenses/by-nc-nd/3.0/
© JR Crellin, www.floralimages.co.uk; http://creativecommons.org/licenses/by-nc-nd/3.0/
From www.commons.wikimedia.org; artist: Jacob Sturm; original source: Deutschlands flora in Abbildungen at www.biolib.de