What are the Uses and Health Benefits of Saffron (Kesar, Crocus Sativus)? What is Saffron (Kesar)? The Latin name of this herb is Crocus sativus. It is a flowering perennial herb commonly known as autumn crocus or saffron crocus. According to morphology this herb have corm that holds bracts, bracteole, flowering stalk, and leaves. The purple flowers of this herb blooms in the autumn. This plant grows to 10 to 30 cm in height. Kesar flowers have good fragrance with