木賊とくさ

noun

scouring rush; common horsetail; Equisetum hyemale

A perennial plant with jointed, hollow stems. Historically used for scouring and polishing due to its high silica content.

• 木賊とくさは茎くきに節ふしがある植しょく物ぶつです。

  The scouring rush is a plant with joints on its stems.

• 昔むかしの人ひとは木賊とくさで木きを磨みがいた。

  People in the past polished wood with scouring rushes.