Hemlock (Conium maculatum) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. Hemlock (Conium maculatum) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. Free Image from public domain license
Free
White horehound (Marrubium vulgare) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. White horehound (Marrubium vulgare) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. Free Image from public domain license
Free