Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Stinging hairs on a nettle leaf. Liz Hirst, Medical Research Council. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Stinging hairs on a nettle leaf. Liz Hirst, Medical Research Council. Source: Wellcome Collection.