Medicinal plants are used as traditional herbal remedies for some illnesses and disorders such as diabetes, sweating and bleeding, regulation of the menstrual cycle, and reduction of extensive hemorrhage, stomach pain, inflammation, and toothache (Lari et al., 2020; Selim et al., 2014; Shafaghat, 2009).
Medicinal plants are globally valuable sources of new drugs (Hamilton, 2004; Nalawade et al., 2003). More than 1300 medicinal plants are used in Europe, of which 90% are harvested from wild resources. In the United States, approximately 118 of the top 150 prescription drugs are based on natural sources (Balunas and Kinghorn, 2005). Medicinal plants are used as traditional herbal remedies for some illnesses and disorders such as diabetes, sweating and bleeding, regulation of the menstrual cycle, and reduction of extensive hemorrhage, stomach pain, inflammation, and toothache (Lari et al., 2020; Selim et al., 2014; Shafaghat, 2009). Currently, medicinal plants have become important raw materials for extracting essential oils, and PEOs have been obtained from certain medicinal plants (Table 2) (Jugreet and Mahomoodally, 2020; Zhang and Yao, 2019).