Pearl Crescent Butterfly on Butterfly Weed flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202234/photo-image-flower-public-domain-natureFree Image from public domain licensePainted Lady Butterfly on Asters flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202187/photo-image-flower-public-domain-natureFree Image from public domain licenseCheckered Skipper Butterfly on Asters flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202233/photo-image-flower-public-domain-natureFree Image from public domain licenseButterfly, Regal Fritillary and Great Spangled Firtillary. Free public domain CC0 photo. https://www.rawpixel.com/image/6202195/photo-image-flower-leaf-public-domainFree Image from public domain licenseAmerican Copper butterfly on daisy flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202155/photo-image-flower-public-domain-natureFree Image from public domain licenseYellow butterfly, Eastern Tiger Swallowtail. Free public domain CC0 photo. https://www.rawpixel.com/image/6202357/photo-image-flower-public-domain-natureFree Image from public domain licenseBlack Swallowtail Butterfly on Common Milkweed flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202219/photo-image-flower-leaf-public-domainFree Image from public domain licenseCabbage rose by Pierre-Joseph Redouté (1759–1840). Original from Biodiversity Heritage Library. Digitally… https://www.rawpixel.com/image/263745/free-illustration-image-rose-butterfly-redouteFree Image from public domain licenseChinese peony painting from the Qing Dynasty (1644–1911) by anonymous. Original from The MET Museum. Digitally… https://www.rawpixel.com/image/2203266/vintage-chinese-botanical-paintingFree Image from public domain licenseChinese peony painting from the Qing Dynasty (1644–1911) by anonymous. Original from The MET Museum. Digitally… https://www.rawpixel.com/image/2203333/vintage-chinese-botanical-paintingFree Image from public domain licenseChinese flower painting from the Qing Dynasty (1644–1911) by anonymous. Original from The MET Museum. Digitally… https://www.rawpixel.com/image/2203265/vintage-chinese-botanical-paintingFree Image from public domain licenseThe 18th century illustration of a basket of blooming flowers. Original from The Smithsonian. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2663769/free-illustration-image-flower-vintage-rosesFree Image from public domain licenseA Selection of Hexandrian Plants, belonging to the natural order of Amaryllidae and Liliacae: Tiger Lily (ca.… https://www.rawpixel.com/image/2442636/free-illustration-image-botanical-flower-vintageFree Image from public domain licenseThe 18th century illustration of a basket of blossoms and leaves with pomegranates on earth. Original from The Smithsonian.… https://www.rawpixel.com/image/2663421/free-illustration-image-flower-vintage-fruitFree Image from public domain licenseKeizerskroon tulip, butterflies and caterpillars by Johan Teyler (1648-1709). Original from The Rijksmuseum. Digitally… https://www.rawpixel.com/image/515296/free-illustration-image-butterfly-flower-tulipFree Image from public domain licenseSwallowtail butterfly and Wild Bergamot flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202363/photo-image-flower-public-domain-floralFree Image from public domain licenseSwallowtail butterfly on Milkweed flower. Free public domain CC0 photo. https://www.rawpixel.com/image/6202420/photo-image-flower-public-domain-natureFree Image from public domain license