Black horehound or Ballota nigra is a herbaceous plant that is widely used for medicinal and culinary purposes. It is also known by many other synonyms such as stinking horehound, hedge hemp, and black ageratum. This plant is native to the Mediterranean region, but now it is widely cultivated all over the world due to its numerous benefits. The leaves of black horehound have a pungent and slightly bitter flavor and are used as a flavoring agent in many dishes. It has also been used for centuries as a natural remedy for various ailments such as headaches, nausea, and coughs. Regardless of its name, this plant is a versatile and valuable addition to any garden or medicine cabinet.