Parthenium hysterophorus, a highly invasive weed from the Asteraceae family, is widely recognized for its detrimental ecological impact. However, recent studies highlight its significant antimicrobial and antibiofilm potential. This plant is rich in bioactive compounds, including alkaloids, flavonoids, phenols, terpenes, and pseudoguaianolides, which contribute to its therapeutic properties. Among its emerging applications, the green synthesis of nanoparticles using P. hysterophorus extracts has gained attention due to its eco-friendly and cost-effective nature. In particular, zinc oxide...