Chrysopogon nigritanus, more widely known by the taxonomic synonym Vetiveria nigritana, or the common name black vetivergrass, is a perennial grass species of the family Poaceae and therefore is also a monocotyledon.

[1] More specifically, Vetiveria nigritana is a very thick and tall type of grass that is deeply rooted within the ground and is usually used to protect crops and deter soil erosion.

[1] In addition, the plant, like other vetiver grasses, has been used in these regions due to its extreme drought tolerance, ability to grow in infertile soil and the fact that it can live under complete submergence.

[2] Vetiveria nigritana is a very beneficial plant within subsistence agriculture, especially in Africa, due to its ability to preserve soils and reduce water runoff, which ultimately is correlated with higher crop yields.

[2] However, the two forms of vetiver grass are very similar in their benefits and growing conditions; the largest difference is that Chrysopogon zizaniodes has been more widely studied and used, especially to create fragrances.

Essentially, when Vetiveria nigritana is planted in hedgerows surrounding a crop or in multiple spaced rows, it creates a barrier that prevents soil run-off.

[3] Secondly, the use of Vetiveria nigritana also reduces water runoff, in some cases by 130%, which is beneficial because in areas where irrigation is not present, conserving natural rainfall is essential for the survival of a farmer’s crop.

Another benefit of Vetiveria nigritana is its ability to deter pests from damaging crops while in the field during the growing season and from ruining the quality of plants while in storage.