Knotwilg en es (c. 1820 - 1833) by J Bernard and Gottfried Engelmann https://www.rawpixel.com/image/13741051/knotwilg-c-1820-1833-bernard-and-gottfried-engelmannFree Image from public domain licenseKnotwilg (c. 1820 - 1833) by J Bernard and Gottfried Engelmann https://www.rawpixel.com/image/13741057/knotwilg-c-1820-1833-bernard-and-gottfried-engelmannFree Image from public domain licenseKnotwilg in landschap met molen (1867 - 1914) by Maurits van der Valk https://www.rawpixel.com/image/13762736/knotwilg-landschap-met-molen-1867-1914-maurits-van-der-valkFree Image from public domain licenseKnotwilg te Sloterdijk (1825 - 1873) by Pierre Louis Dubourcq https://www.rawpixel.com/image/13788604/knotwilg-sloterdijk-1825-1873-pierre-louis-dubourcqFree Image from public domain licenseKnotwilg (1820) by Anthonie Willem Hendrik Nolthenius de Man https://www.rawpixel.com/image/13759571/knotwilg-1820-anthonie-willem-hendrik-nolthenius-manFree Image from public domain licenseBoerenwoning met knotwilg en zeilschepen op open water (1700 - 1800) by Cornelia Alida Westerhof https://www.rawpixel.com/image/13792560/image-paper-frame-artFree Image from public domain license