Common name: Vervain
Botanical name: Verbena officinalis
Medicinal use: As a poultice it is good in headache, earneuralgia, rheumatism, etc. In this form it colors the skin a fine red, giving rise to the idea that it had the power of drawing the blood outside. **
**Sourced from: http://botanical.com/botanical/mgmh/v/vervai08.html
Herbal Embers uses: According to Scott Cunningham's Encyclopedia of Magical Herbs, vervain is used in infusions to sprinkle around a building or land to protect it from evil. It is said to be a common ingredient in exorcism incenses.