Why has the Gujarat government banned the planting of Conocarpus trees?

The Gujarat govt has banned the planting of ornamental Conocarpus trees in forest or non-forest areas, citing their adverse impacts on environment and human health. Earlier, Telangana too had banned the plant species. Conocarpus is a genus of two species of flowering plants in the Combretaceae family. One species is a widespread mangrove, and the other is restricted to a small area around the southern Red Sea coasts. Conocarpus erectus also known as buttonwood or button mangrove,  It is a mangrove shrub that grows on shorelines in tropical and subtropical regions around the world. It is widely used in gardens, parks, and indoors. It is a fast-growing plant that does not shed its leaves much. If pruned with skill, it can make a natural green wall. Conocarpus lancifolius It is a tree that is native to coastal and riverine areas of Somalia, Djibouti, and Yemen. It is found throughout the Horn of Africa, the Arabian Peninsula, and South Asia. About Gujarat Chief minister: Bhupendrabhai Patel     Governor: Acharya Devvrat           Capital: Gandhinagar