glabrescent

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

嫩圆柱状到经常地四棱形或略似翼，无毛，毛，短毛，或绒毛，通常后脱。

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

小枝具短毛到后脱有小鳞屑毛与具爪鳞片混生。

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

在日本鞘总显著具糙硬毛具瘤；最旧，更下部鞘具片在后脱和斑点具小瘤。