anacharis
An*ach"a*ris, n. Etym: [NL., fr. Gr. (Bot.) Defn: A fresh-water weed of the frog's-bit family (Hydrocharidaceæ), native to America. Transferred to England it became an obstruction to navigation. Called also waterweed and water thyme.
An*ach"a*ris, n. Etym: [NL., fr. Gr. (Bot.) Defn: A fresh-water weed of the frog's-bit family (Hydrocharidaceæ), native to America. Transferred to England it became an obstruction to navigation. Called also waterweed and water thyme.