Branchlets pubescent to glabrescent with minute scurfy hairs intermixed with unguicular scales.

小枝具短柔毛到后脱落有微小鳞屑毛与具爪鳞片混生。

Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.

圆柱到经棱形或略似翼，无毛，被微柔毛，短柔毛，或被绒毛，通后脱落。

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

在日本叶鞘总显著具糙硬毛具瘤；最旧，更下部鞘具叶片在后脱落和斑点具小瘤。