Anacharis:

Anacharis:

Anacharis Rich., Hydrocharitaceae: See Elodea Michx. .

Anacharis alsinastrum:

Anacharis alsinastrum Bab. ex Planch., Hydrocharitaceae: See Elodea canadensis Michx.

I have no articles for this botanical term, but there might be some for the next level down (if found).