(old Greek name). Gramineae. A genus some what closely related to Indian Corn, and similar to it in leaf structure. A hardy annual, 2-3 ft. high, with broad lvs. and a curious nodding inflorescence. The female fls. are inclosed in a nearly globular, capsule-like covering. which is very hard. This capsule (or involucre) is at first green, then a jet black, becoming nearly white with age. Southern Asia.