Allelopathic Effects of Invasive Alien Species <i>Parthenium hysterophorus L.</i>

The Asteraceae family includes Parthenium hysterophorus. The subtropical regions of the Americas are the original habitat of this invasive noxious weed. It is spreading in India and other Asian countries at an alarming rate. It releases allelochemicals like parthenin into the environment by leaching, volatilization, etc. It has ability to grow very fast. It is branched, annual, erect herbaceous plant with tap root system. Stem is cylindrical with longitudinal lines. The alternating leaves are simple and have deep pinnatifid veins. There are several tiny, hairy flower heads at the very end, called capitulum. In every flower-head, you'll find five tiny seeds called achenes. We are well-versed in the toxic effects of P. hysterophorus and would like to prevent an infestation. But managing it through its use for various objectives is better than merely regulating its growth, which won't get rid of it. The practical qualities of Parthenium hysterophorus have recently attracted a great deal of attention from researchers.