This document summarizes four plants from the Ranunculaceae family: Aconitum, Hydrastis, Delphinium, and Anemone. Aconitum, also known as Monkshood or Aconite root, contains toxic alkaloids including aconitine. It grows in mountains and is used as a local analgesic, anti-inflammatory, and antipyretic in small doses, but can be fatal in higher amounts. Hydrastis canadensis or Golden seal contains alkaloids like berberine and hydrastine and is used as an astringent. Delphinium contains alkaloid toxins and is used as a parasiticidal and treatment