Ethnobotanical, Phytochemical and Pharmacological Importance of Selected Members of Euphorbiaceae: A Review

Abstract

The family Euphorbiaceae is recognized as one of the most diverse groups of flowering plants and includes many species of medicinal, ecological, and economic importance. Plants belonging to this family are mainly distributed in tropical and subtropical regions, where they have long been used in traditional healthcare systems for managing respiratory disorders, digestive problems, liver diseases, skin infections, inflammatory conditions, and microbial illnesses. This review examines five representative species: Euphorbia hirta, Ricinus communis, Acalypha indica, Croton bonplandianus, and Phyllanthus amarus. These species were selected because of their ethnomedicinal value, rich phytochemical composition, therapeutic promise, and environmental adaptability. Published literature was carefully evaluated to summarize their taxonomy, morphology, traditional applications, chemical constituents, biological activities, and future research opportunities. Major compounds reported from these plants include flavonoids, alkaloids, tannins, lignans, terpenoids, fatty acids, and phenolic substances, many of which are linked with antioxidant, antimicrobial, anti-inflammatory, hepatoprotective, antidiabetic, wound-healing, bronchodilatory, and antiviral properties. Among the selected plants, Phyllanthus amarus shows notable promise for liver protection, whereas Ricinus communis remains highly significant for pharmaceutical and industrial uses. Euphorbia hirta and Acalypha indica continue to be valued as traditional medicinal herbs, while Croton bonplandianus has gained attention for its emerging pharmacological and ecological roles. Although these plants are widely used in folk medicine, several still require better standardization, toxicity assessment, and clinical validation. The review emphasizes the need to combine traditional botanical knowledge with modern phytochemical and pharmacological approaches for the development of evidence based herbal medicines and sustainable biological resources. Further scientific investigation of these Euphorbiaceae species may support future drug discovery and strengthen plant-based healthcare systems.