An endangered species is one which is likely to get extinct in the near future. Drosera indica or sundew is native to tropical countries throughout the world. It belongs to the family Droseraceae. It is an insectivorous plant and is categorized as an endangered flora. The plant can be yellow-green to maroon in color. Moreover, the rest two are members of fauna, not flora
So, the correct answer is 'Drosera indica'