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

小枝具短柔落有微小的鳞屑与具爪鳞片混生的。

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

嫩茎圆柱经常地四棱形略似翼的，无，微柔，短柔，绒的，通常落。

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；最旧的，更下部的鞘具叶片在落和斑点具小瘤。