disarticulated

18(17) Inflorescence subtended by a broad, 2-keeled prophyll; rachilla internodes usually distinct and disarticulating.

花序被包着一宽阔的部分，2龙；穗轴节间通常清楚和脱节。

In Japan the leaf sheaths are always conspicuously tuberculate-hispid; the older, lower sheaths with disarticulated blades are glabrescent and spotted with tubercles.

在日本叶鞘总显著糙硬毛瘤；最旧的，更下部的鞘叶片在后脱落和斑点瘤。