knotweed

n. [植] 紫菀科植物, 蓼科杂草

词形变化

knotweeds 复数 knotweeds

释义与例句

n.
  1. 1.

    Any of several plants of the genus Polygonum, with jointed stems and inconspicuous flowers

    蓼

相关短语

Japanese knotweed 虎杖 Chinese knotweed

词源

From knot + weed.

来源：wiktionary