Yellow rose by Pierre-Joseph Redouté (1759–1840). Original from Biodiversity Heritage Library. Digitally…Free Image from public domain license
Rosa hemisphaerica, also known as Yellow Rose of Sulfur (Rosa sulfurea) from Les Roses (1817–1824) by Pierre-Joseph…Free Image from public domain license
Coreopsis by Frederick Edward Hulme (1841-1909), a vintage chromolithograph of tickseed. Digitally enhanced from our own…Free Image from public domain license
Colorful field of sunflowers near Beloit. Original image from Carol M. Highsmith’s America, Library of Congress…Free Image from public domain license