#CrotonOblongifolius

Thailand’s lush forests have long been a pharmacy for its people, with “เปล้าใหญ่” (Pao Yai or Croton oblongifolius Roxb.) prized as both a household herbal medicine and a subject of modern scientific inquiry. Once the preserve of village healers and traditional midwives, the leaves of Pao Yai are now being examined with the lens of pharmacological research, offering a fascinating bridge between the wisdom of the ancients and the rigor of modern science. As health-conscious Thais and global communities turn to natural options, understanding the story of Pao Yai opens a window on how local plants can support—yet must never replace—conventional healthcare, especially as research unfolds.