Pink and white pennyroyal flowers png botany sketch https://www.rawpixel.com/image/2611535/free-illustration-png-mint-leaf-botanicalView licensePennyroyal (Mentha pulegium) illustration. Digitally enhanced from our own book, Medical Botany (1836) by John Stephenson… https://www.rawpixel.com/image/326706/free-illustration-image-mint-mentha-pennyroyalFree Image from public domain licensePennyroyal (Mentha pulegium) illustration from Medical Botany (1836) by John Stephenson and James Morss Churchill. https://www.rawpixel.com/image/327225/premium-illustration-psd-mentha-mint-plant-botanical-pennyroyalView licensePennyroyal (Mentha pulegium) and creeping thyme (Thymus serpyllum): entire flowering plants. Coloured etching by C. Pierre… https://www.rawpixel.com/image/14018073/image-flower-plant-grassFree Image from public domain license