Sentence:  <WSD>Vetiver</WSD> can easily thrive in wetlands and can be used in the constructed wetlands for removal of nitrogen (N) and phosphorus (P) and heavy metals from the polluted storm water, municipal and industrial wastewater, and effluents from abattoirs, feedlots, piggeries and other intensive livestock industries. 
Meaning of the word marked with <WSD> tags:  The grass "Chrysopogon zizanioides" ( <= (noshow=1)), which is native to India, but planted throughout the tropics for its fragrant roots and for erosion control.