1. pertaining to
flowerless plants (ferns or mosses) in which growth occurs only at the tip of the main stem.

与生长仅发生在主干顶部的无花植物(如蕨类植物或苔藓类植物)相关的。
2. perennial rushlike
flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes;

常年生灌木无花草本植物,具有有节的中空茎梗、狭窄的齿状叶片和匍匐的根茎;