Photo: Rhinanthus serotinus 0.
Flowers. A half-parasite, it only flowers when it can take strength from a host. BGBM, Berlin, Germany. Wild. 1995-06-01.
Rhinanthus serotinus (Schonh.) Oborny
Engl.: greater yellow-rattle, late-flowering yellowrattle.
Deu.: Grosser Klappertopf.
Suom.: isolaukku.
Sven.: höskallra, höstskallra, stor höskallra.
Bot. syn.: Rhinanthus angustifolius C. C. Gmel., Rhinanthus major auct.