Hokusai's Burdock Root (Kurama gobo) (1822). Original from The Art Institute of Chicago. https://www.rawpixel.com/image/7638484/original-from-the-art-institute-chicagoFree Image from public domain licenseBamboo leaf with kombu, burdock roots and nandina (1812) by Kubota Shunman https://www.rawpixel.com/image/13770064/bamboo-leaf-with-kombu-burdock-roots-and-nandina-1812-kubota-shunmanFree Image from public domain licenseIngredients used for dying of wool used at WPA (Works Progress Administration/Work Projects Administration) weaving project.… https://www.rawpixel.com/image/12173854/image-plant-person-artFree Image from public domain license