Explanation:

=> Oryza rufipogon, a rare species of wild rice was found in a two hectare plot of land near Borjuli Tea Estate in Sonitpur district.

=> The wild rice Rufipogon is also known as brown beard rice.

=> It is a perennial, tufted grass which grows in shallow water.

=> The particular rice species is flood resistant and tolerant to acid soil.

=> The state government acquisitioned the crop growing area last year soon after the discovery of the rice species which is now under the process of being declared as a Biodiversity Heritage Site (BHS).