柠檬草（学名：Cymbopogon citratus）又名柠檬香茅，生长在开阔的热带干燥土壤，分布于印度南部及斯里兰卡。全株芳香，丛生的球茎上产生大量叶片及分之的圆锥花序。

是一种收敛剂、滋补剂，且可帮助消化。对皮肤和指甲有益。治疗发烧、流行性感冒、疼痛和刺激肠道有帮助。

Cymbopogon citratus, commonly known as lemon grass or oil grass, is a tropical plant from South Asia and Southeast Asia.

Cymbopogon citratus is often sold in stem form. While it can be grown in warmer temperate regions, such as the UK, it is not hardy to frost.