Collinsonia, or stone root, is spicy and sour in taste and possesses properties that are astringent, diuretic, emmenagogue, and alterative. Collinsonia contains saponins, alkaloids, tannins, and resins, and has deomstrated effectiveness for hemorrhoids, varicose veins, and diarrhea. - The main use for collinsonia is supporting hemorrhoids. This is because it has the ability to strengthen the veins of the body and thus works directly on strengthening the portal vein of the rectum and varicose veins generally. It is also useful for the potential to help support symptoms of symptoms of diarrhea.