Cornflower is also known as Centaurea cyanus, Casse Lunette, Bachelors Buttons, Bluebonnet, Blue Bow, Centaury, Cyani, Hurtsickle, and Bluecap. Cornflower is a common wildflower that has been cultivated as a garden flower for centuries. The cornflower gets its formal name from a minor goddess, Cyanus, and its genus name from a mythical Centaur (from the Greek Centaurea), whose name was Chiron. Chiron was a renowned herbalist in Greek mythology, and is credited with teaching mankind about the healing power of herbs. In many areas of the U.S., cornflowers are considered invasive weeds, despite the fact that they are also sought after garden flowers. They are annuals and biennials that often self sow and reseed themselves, making them difficult to eradicate. They got the name Bachelor's buttons in Victorian England because young women would wear them as a sign of availability. Cornflower contains anthocyans, coumarins, flavonoids.