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

枝具短到后脱落有鳞屑与具爪鳞片混生。

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

嫩茎圆柱到经常地四棱形或略似翼，无，被，短，或被绒，通常后脱落。

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具瘤；最旧，更下部鞘具叶片在后脱落和斑点具瘤。