Crocus (Saffron (/ sæfrɒn /), scientific name: Crocus sativus) or called saffron, saffron, is a perennial flower Crocus Iridaceae, is a common spice. In terms of weight measure, saffron is the world's most expensive spice. Saffron is a native species in Southwest Asia, but cultivated by the Greeks first began. Saffron treatment of respiratory tract infection (cough and cold), scarlet fever, smallpox, cancer and asthma. Furthermore, saffron also used to treat other diseases of blood and include: insomnia, paralysis, heart disease, flatulence, stomach problems, gout, chronic uterine bleeding, amenorrhea, and eye diseases such as infant colic. "Compendium of Materia Medica" on the record on saffron has sedative, analgesic, blood stasis and other effects. But at the same time due to pass through, abortion, and promote the role of uterine contractions, so pregnant women should not use. For lactating women in the food safety of the also doubts. Ancient Persians and Egyptians also used saffron to impotence, detoxification, help digestion, as well as the treatment of dysentery and measles is the nature of the tumor suppressor, antioxidant, immune regulation.