bitterweed / ˈbɪt ərˌwid /

📖毕业后词汇苦草苦菜苦菜花苦艾草

bitterweed 的定义

n. 名词 noun
  1. any of various plants containing a bitter principle, as those of the genus Picris.
  2. a sneezeweed, Helenium amarum.