what are saffron threads
Saffron is a spice derived from the flower of Crocus sativus, commonly known as the saffron crocus. The vivid crimson stigmas and styles, called threads, are collected and dried to be used mainly as a seasoning and colouring agent in food. Saffron, long among the world's most costly spices by weight, was probably first cultivated in or near Greece. C. sativus is probably a form of C. cartwrightianus, that emerged by human cultivators selectively breeding plants for unusually long stigmas in la