Scientific Name: Berberis thunbergii Contains berberine which has been used as an effective antiseptic. It is also being researched for its use in diabetes mellitus, cancer and depression.

Scientific Name: Podophyllum peltatum Contains podophyllotoxin, which is used topically to treat genital warts caused by human papillomavirus (HPV). The entire plant, except for the fruit, is poisonous.

Scientific Name: Mahonia aquifolium Contain the alkaloid berberine, known as an anti-inflammatory and anti-bacterial used in the treatment of infection.