Orobanche elatior

Orobanche elatior

Orobanche elatior Sutton.
Engl.: knapweed broomrape.
Deu.: Grosse Sommerwurz.
Sven.: klintsnyltrot.
Bot. syn.: Orobanche major auct.

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