Bitter root (Gentiana lutea) illustration. Digitally enhanced from our own book, Medical Botany (1836) by John Stephenson…
https://www.rawpixel.com/image/327107/free-illustration-image-bitter-root-flowers-public-domain-yellow-flower-watercolorFree Image from public domain license
Barbary Nut illustration from Les liliacées (1805) by Pierre-Joseph Redouté. Original from New York Public…