Anxiety is a natural feeling in people and every person experiences in certain conditions in his/her life. Anxiety refers to an unpleasant and vague feeling accompanied by worry about known and unknown origin. Symptoms of anxiety include heart palpitations, restlessness, fatigue, insomnia, dyspnea, and disturbance in concentration and memory. Fortunately, in these days, there are many ways such as yoga, relaxation, and massage to overcome stress and mental pressures. In addition, there is a completely different, nature-based way to control adverse emotions and anxiety, which is phytotherapy. In this article, the use of medicinal plants in pharmaceutical industry and treatment of anxiety was investigated. To achieve this purpose, the keywords such as medicinal plants, herbal drugs, traditional medicine, and anxiety were used to search for related articles. The databases Scopus, PubMed, ISI, Google Scholar, SID, and Magiran were searched for relevant articles. Based on the results, plants such as Valeriana officinalis, Passiflora incarnata, Rosmarinus officinalis, Lavandula angustifolia, Hypericum perforatum, Mentha piperita, Matricaria chamomilla, Glycyrrhiza glabra, Melissa officinalis, Crataegus aronia, Humulus lupulus, Echium amoenum, Prunus dulcis, and Foeniculum vulgare are some of the flora that, in the references, are recommended to control anxiety.