Stachys byzantina K.Koch also known as Stachys lanata. Lamiaceae. Lamb's Ears. Distribution: Europe. Its woolly leaves were regarded as a vulnery, to stop bleeding, which it would have done in a manner similar to cotton-wool, allowing platelets to clot on its hairs. Photographed in the Medicinal Garden of the Royal College of Physicians, London.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Stachys byzantina K.Koch also known as Stachys lanata. Lamiaceae. Lamb's Ears. Distribution: Europe. Its woolly leaves were regarded as a vulnery, to stop bleeding, which it would have done in a manner similar to cotton-wool, allowing platelets to clot on its hairs. Photographed in the Medicinal Garden of the Royal College of Physicians, London. Dr Henry Oakeley. Source: Wellcome Collection.