Yes Plants Have Been Used as medicines since prehistoric times and the effectiveness of some is beyond doubt. Manyof today's most important drugs such as aspirin , morphine and quine came originally from plants. In some countries such a China herbal remedies are still among the most widely used of all medicines thought not all are equally effective.
Plants for health:
1.Periwinkle
2.Feverfew
3.White Willow
4.Opuim poppy
5.Foxglove
img source: https://en.wikipedia.org/wiki/Periwinkle_(color)