Elecampane (Inula helenium) illustration. Digitally enhanced from our own book, Medical Botany (1836) by John Stephenson and… https://www.rawpixel.com/image/326715/free-illustration-image-horse-flowersFree Image from public domain licenseVintage elecampane yellow flowers png illustration https://www.rawpixel.com/image/2611553/free-illustration-png-elecampane-herbal-flower-herbs-watercolorView licenseElecampane =: HeleniumCollection: Images from the History of Medicine (IHM) Alternate Title(s): Helenium Author(s):… https://www.rawpixel.com/image/9647645/image-flower-plant-handFree Image from public domain licenseElecampane plant (Inula helenium): flowering stem, leaf and floral segments. Chromolithograph, c. 1887, after W. Müller. https://www.rawpixel.com/image/13964332/image-flower-plant-medicineFree Image from public domain licenseElecampane (Inula helenium) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. https://www.rawpixel.com/image/326991/premium-illustration-psd-elecampane-antique-botanicalView licenseInula viscosa: flowering stem. Coloured engraving after F. von Scheidl, 1772. https://www.rawpixel.com/image/13966958/inula-viscosa-flowering-stem-coloured-engraving-after-von-scheidl-1772Free Image from public domain license