Schizachyrium is a genus of grasses in the Poaceae family. The name is derived from the Greek words σχίζειν (schizein), meaning `to split,` and ἄχυρον (achyron), meaning `chaff.` It refers to either the glume or the toothed lemmas. Members of the genus are commonly known as bluestems. ==Selected species== ... Found on http://en.wikipedia.org/wiki/Schizachyrium