Calopogonium is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Faboideae.Calopogunium Mucunoides is a vine that was introduced into Australia as a pasture legume. It has become naturalized in distirbes sites, waste areas and crops along roadsides and water ways and on the edges of rain forests in the wetter tropical regions of Northern Australia. It is most common in the Darwin region and in surrounding bush land and has also become a weed in Kakadu National Park. In these areas, populations are extending rapidly and it has been observed to form dense mats that smoother native vegetarian.