Cymbopogon nardus is a perennial of the Poaceae grass family, originating in tropical Asia.
- It is commonly used as an essential oil known as "citronella oil".
- Cannot be eaten because of its unpalatable nature.
- Is an invasive species that renders pastureland useless as cattle will starve even in its abundance.
Essential oils are extracted from the aerial parts, and are applied topically as an insect repellent.