Herb Pharm Oregon Grape Liquid Herbal Extract Description. Mahonia (Berberis) aquifolium. Young Lateral Roots. Herbal Dietary Supplement. We prepare our Oregon Grape Extract from the young lateral roots of Mahonia (Berberis) aquifolium shrubs which are Custom Wildcrafted in their wild mountain habitat in the Pacific Northwest. To assure optimal extraction of Oregon Grapes bioactive compounds the roots are hand-dug only in late autumn or early spring and are then carefully shade-dried and thoroughly extracted. Our Oregon Grape is never fumigated or irradiated. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose treat cure or prevent any disease. Shake Well Before Using. Two to four times per day take 30 to 40 drops in a little water. Ingredients: Young lateral roots of Berberis aquifolium shrubs. Dry herb/ menstruum ratio: 1:5 Certified organic grain alcohol (42-47%) distilled water and oregon grape extractives.