an aquatic plant with yellow flowers floats in dark water

nature plant leaf green water color beautiful natural outdoor closeup beauty blooming blossom bloom petal flora background floral summer yellow garden outdoors blossoming fresh leaves lake pond botany botanical flower stem lily nymphaea waterlily aquatic freshwater floating nymphaeaceae pondlily cowlily yellowwaterlily brandybottle spatterdock spadderdock lutea nuphar mulefoot nenuphar jaune lanterns water-lily native germany it's family flowers floats dark