Listera convallarioides

Listera convallarioides

Listera convallarioides (Sw.) Nutt. ex Ell.
Engl.: broad-leaved twayblade, broadlipped twayblade.
Bot. syn.: Ophrys convallarioides (Sw.) W. Wight.

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