I want to know the answer to the following question:
What was the De Materia Medica written about?
All the background I'm provided with is that "Another work from Ancient Greece that made an early impact on botany is De Materia Medica, a five-volume encyclopedia about herbal medicine written in the middle of the first century by Greek physician and pharmacologist Pedanius Dioscorides.". Is that enough to answer the question?