Coriander, Coriandrum sativum, is an erect annual herb in the family Apiaceae. The leaves of the plant are variable in shape, broadly lobed at the base of the plant, and slender and feathery higher on the flowering stems. ... The plant produces an oval shaped fruit which is yellow-brown in color and contains two seeds.Coriander or cilantro is a wonderful source of dietary fiber, manganese, iron and magnesium as well. In addition, coriander leaves are rich in Vitamin C, Vitamin K and protein. They also contain small amounts of calcium, phosphorous, potassium, thiamin, niacin and carotene.Many people use coriander in dishes like soups and salsas, as well as Indian, Middle Eastern, and Asian meals like curries and masalas. Coriander leaves are often used whole, whereas the seeds are used dried or ground.