MARIA MOSOLOVA / SCIENCE PHOTO LIBRARY MARIA MOSOLOVA / SCIENCE PHOTO LIBRARY
Cowslip flowers (Primula veris). This plant contains salicylate, which is the main ingredient in aspirin. The flower is used in herbal medicine in the treatment of asthma and other allergies. The root is used to treat coughs, flu, and kidney complaints. Photographed in April.
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