In this study, Buchanania lanzan sprang.,Millettia peguenensis Ali., and Evolvulus alsinoides L. were analyzed in terms of phytochemical composition, distribution, and ethnomedicinal uses. These plants are used in Ayurveda, Unani, and Chinese medicine as ethnomedicine. Plants have numerous properties, such as antioxidants, antibiotics, anti-bacterial, anti-ulcer, anti-inflammatory, antistress, and antidiabetic. In this review, we intend to demonstrate the phytochemical constituents, as well as the traditional medicinal uses of these herbs. Based on a comprehensive review of various research papers and literature available on these three plants, as well as the present research done by us, we have tried to compile information regarding Buchanania lanzan sprang.,Millettia peguenensis Ali., and Evolvulus alsinoides L.. Various scientific databases were used to find information on the anti-diabetic properties of B. lanzan, M. peguensis, and E. alsinodes, like Scopus, PubMed, ScienceDirect, and Google Scholar. Different parts of the plants were examined for their phytochemical, toxicological, antioxidant, antidiabetic, antiinflammatory, antistress, and many more. They contain a number of phytochemical compounds, including flavonoids, saponins, alkaloids, tannins, terpenes, and glycosides, which are responsible for their ability to treat diabetes, wounds, and oxidative stress. A crude extract of the different parts has valuable bioactive properties and could have ethnopharmacological relevance for managing different kinds of diseases. These phytoconstituents can be used in the formation of drugs.