The smell of vetiver is similar to that of dry wood, with an aroma of natural soil. Vetiver is a robust perennial herb of Gramineae, which is widely distributed in East and Southeast Asia. The essential oil extracted from its roots is thick brown and thick, and its violet flavor is low and volatile. Vetiver uses the essential oils extracted from the roots of vetiver grass. It is rich in oil and brown. It has strong consistency, violet flavor and low volatility. It is often used as a fixative. Its stalk can also be used as raw material for papermaking.
Vetiver roots can penetrate the hard red clay and the weak zone between gravel and rock stratum, and can anchor the soil layer, improve the shear strength of soil and stabilize the slope.
Vetiver has a high absorption rate of zinc and lead, and can be used as a super enrichment plant of zinc and lead. It can also be used as fermentation raw material to produce biogas or ethanol. （XiangGenCaoShenMeWeiDao）