Quatica and Phellandrium can poison an individual if they are ingested and can cause allergic reactions to eyes and the skin. These two species of plants are very poisonous, because they normally contain a high level of alkaloids, which are very toxic even if the ingested parts of the two plants were boiled. When handling these plants, it is advisable to use gloves in addition to covering the face with a mask to avoid any chances of the skin touching these two species of plants.