Mistletoe
Viscum album
Mistletoe was an important plant to the pagan anglo-Saxon, it was harvested on Midsummer's Eve and during the harvesting it was not allowed to touch the ground. In some areas it was even considered bad luch to cut it with a knife or blade and so it had to be shot down with an arrow or spear. Mistletoe taken from the oak was thought to be the most powerful, and was believed to ward against evil witches, have powers over life and death bestow fertility, have the healing powers of an allheal, and work as an aphrodisiac. Mistletoe berries, however, are extremely poisonous and should not be eaten.
Mistletoe was also worn for protection and to attract love, or to help conceive. It can been used as a ward against lightning, fire, disease, and misfortune of any kind. It seems to have been an all-purpose warding plant to use agains all manner of demons.