北美绳草，叶子有干燥的膜缘，颖带有长芒。
North American cordgrass having leaves with dry membranous margins and glumes with long awns.
在掌腱膜挛缩和粘连严重的部位按长轴作直切口可以防止创缘皮肤坏死。
Straight vertical incision along the contracture cord and the area of skin adhesion can prevent the skin necrosis.
它由一大堆扁平的膜缘清楚的囊组成。
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