Alopecurus geniculatus

Alopecurus geniculatus

Alopecurus geniculatus L.
Engl.: marsh foxtail, water foxtail.
Deu.: Knick-Fuchsschwanzgras, Geknieter Fuchsschwanz.
Suom.: polvipuntarpää.
Sven.: kärrkavle.
Fran.: vulpin genouillé.

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