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 Grape's 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. Weight (lbs): 0.17