knotroot

释义与例句

n.
  1. 1.

    Collinsonia canadensis, a perennial medicinal herb in the mint family, Lamiaceae.

    不可数
  2. 2.

    Stachys affinis, a perennial herbaceous plant, also in the mint family.

    不可数

词源

From knot + root.

来源：wiktionary