資料來源 : Webster's Revised Unabridged Dictionary (1913)

Anacharis \An*ach"a*ris\, n. [NL., fr. Gr. ? up + ? grace.]
   (Bot.)
   A fresh-water weed of the frog's-bit family
   ({Hydrocharidace[ae]}), native to America. Transferred to
   England it became an obstruction to navigation. Called also
   {waterweed} and {water thyme}.