Vietnam is considered as one of the 25 countries having a high value of biodiversity with many rare tree species, non-timber forest products (NTFPs) and medicinal plants (Hoi, 2013; MonRE, 2014). For centuries, the consideration of traditional medicine (i.e., herbal medicine) has been increasing in both developed and developing countries (WHO, 2019). In addition, medicinal plants play a significant role as an alternative medicine due to the damaging effects of food processing and environment as well as hazardous side effects of prolonged medications (WHO, 2002). Globally, more than 35,000 botanic species are being used for medicinal purposes (Lewington, 1993; Effendy et al., 2012). In Vietnam, at least 4,700 recorded plant species have been utilized for traditional medicine (Chi, 2012).