Lesser speargrass (Heteropogon contortus) has a history of use in traditional medicine, particularly in various parts of Asia, the Pacific Islands, and Africa. Ethnobotanical reports indicate that its leaves or preparations made from the plant have been applied externally to treat bites and stings, including those from insects and possibly snakes or scorpions. The rationale in traditional medicine is often based on the plant’s presumed anti-inflammatory or soothing properties, or on cultural practices passed down through generations. However, there is minimal scientific research specifically validating the efficacy or mechanisms of Lesser speargrass for such uses. A limited number of phytochemical analyses suggest the presence of some bioactive compounds, but there is no robust preclinical or clinical data confirming effectiveness for bites and stings. Overall, while the use of Lesser speargrass for this purpose is supported by tradition, the scientific evidence remains extremely sparse.