Marronnier (chestnut tree) from La Plante et ses Applications ornementales (1896) illustrated by Maurice Pillard Verneuil.… https://www.rawpixel.com/image/2419817/free-illustration-image-art-deco-pattern-chestnutFree Image from public domain licenseVarious leaf forms, leaf venation, bud arrangements and woody stems. Watercolour by I. Sawkins. https://www.rawpixel.com/image/13953527/image-roses-plant-medicineFree Image from public domain licenseChestnut branch (1919) by JJulie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/467074/free-illustration-image-julie-graag-chestnut-leafFree Image from public domain license