Ethnobotanical

  Ocimum tenuiflorum - Basil for Immune Support and Respiratory Health Introduction Ocimum tenuiflorum , commonly known as holy basil, has long been used in northern Vietnamese folk medicine for its calming and health-promoting properties. Traditionally, it is used to treat mild respiratory conditions, reduce stress, and support overall wellness. Its aromatic leaves are commonly brewed as teas, added to steam baths, or incorporated into herbal remedies, reflecting a balance between culinary and medicinal practices. Botanical and cultural background Ocimum tenuiflorum , belonging to the Lamiaceae family, is a perennial aromatic herb that typically grows 30–60 cm tall, with ovate, serrated green leaves and small spikes of purple or pink flowers. It thrives in tropical and subtropical climates and prefers well-drained soils, often found in home gardens, temple courtyards, and community herbal plots across northern Vietnam. The plant is particularly abundant in provinces such as Hà Gi...