Bernard Castelein / Green-veined white (Pieris napi) on Water violet (Hottonia palustris), Groot Schietveld, Wuustwezel, Belgium, May.
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Willem Kolvoort / Water violet (Hottonia palustris) and Yellow waterlily (Nuphar lutea) in a bog lake, De Weerribben-Wieden National Park, Holland. June.
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Willem Kolvoort / Water violet (Hottonia palustris) De Weerribben-Wieden National Park National Park, Holland. June.
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Willem Kolvoort / Water violet (Hottonia palustris) in drainage ditch, Holland. May.
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Willem Kolvoort / Water violet (Hottonia palustris) in drainage ditch, Holland. May.
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Willem Kolvoort / Water violet (Hottonia palustris) in drainage ditch, central Holland. May.
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Willem Kolvoort / Water violet (Hottonia palustris) in drainage ditch, central Holland. May.
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Willem Kolvoort / Water violet (Hottonia palustris) in drainage ditch, central Holland. May.