Abstract
Medicinal plants also known as herbal plants are oftenly used in traditional medicine to cure the human diseases. These plants have been used for thousands of years as medicine. The medicinal plants are naturally derived from an indeed resources of vegetable origin. Herb is used for bark, flower, leaf, seed, stigma, stem and non-woody plant. Herbal plants have a significant potential source of therapeutics, and these plants have attained the commanding role in the health care system. In Saudi Arabia, flora has adjacent resemblance with African, Iranoturanian and Mediterranean countries. The prevalence rate of herbal plants in Saudi Arabia is in between 8-76%. Saudi Arabia also have the historical tradition of using herbal medicine in daily life. From the natural source, numerous medications were extracted from the plants. Black seeds, costus, fenugreek, garlic, ginger, henna, miswak and pomegranates are the list of prophetic medicines worked effectively for treating humans. The Saudi medicinal plants are positioned at various regions in kingdom. However, information of Saudi medicinal plants was stored in the Saudi Herbal Plants information system. This review was majorly focused on Leguminosae, Compositae, Labiatae and Euphorbiaceae herbal plant species which are used for the human treatment. This review concludes the available herbal medicines in Saudi Arabia and herbal medicines contain wide range of active pharmacological components have therapeutic effects. Lots of research shows that herbal medicines are used for the human treatment. Saudi Arabia has a great history in treating the diseases with herbal medicines.