Blue Flag
(Iris Versicolor)
What is it?
Commonly grown as an ornamental garden plant, blue flag has a reputation as a blood purifier and cleanser of toxins.
What it does in the body
Blue flag is used to treat skin complaints such as psoriasis and eczema, possibly via its effects on the liver. It is also useful in the treatment of headache and migraine associated with digestive problems and low blood sugar.
Cautions
The root can cause nausea and vomiting. Small doses should be used.