St. John's wort. The author now presented to the public, have endeavoured to collect and verify this information. British flora and Indian floras have been scrutinised and common plants in usage in Ayurvedic Medicine is recorded. Clinical and toxicity studies has been done. European herbal flora represents temperate vegetation, while Indian herbal flora of tropical plants.
Some plants are common in Europe and India.
India is a sub-continent with varied flora both temperate and tropical species.