fertile lemma 7-veined, all lemmas with a retrorsely scaberulous awn, those of the sterile lemmas developing into a fan of recurved hooks at maturity.

• 能育外稃7-脉，全部的外稃具反曲微糙芒，那些的这不育外稃发育成为一球迷下弯具钩成熟时。