Wikipedia definition:
Chrysopogon zizanioides, commonly known as vetiver , is a perennial grass of the Poacea family, native to India. Vetiver can grow up to 1.5 meters high and form clumps as wide. The stems are tall and the leaves are long, thin, and rather rigid; the flowers are brownish purple. Unlike most grasses, which form horizontally spreading mat-like root systems, vetiver's roots grow downward, 2–4 meters in depth. Vetiver is closely related to other fragrant grasses such as lemongrass.*
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Chrysopogon zizanioides -- Vetiver |
*Text Credit: Wikipedia, Photo Credit Wikipeida