Heart's-ease (Viola tricolor) and germander speedwell (Veronica chamaedrys): entire flowering plants. Coloured etching by A.… https://www.rawpixel.com/image/13970532/image-hearts-flower-plantFree Image from public domain license
Wall germander (Teucrium chamaedrys L.): entire flowering plant with separate flower. Coloured etching by M. Bouchard, 1775. https://www.rawpixel.com/image/13968758/image-flower-plant-grassFree Image from public domain license