yellow flowering fen ragwort on the marshy edge of a lake

jacobaea paludosa senecio paludosus angular beautiful biennial biodiversity bloom blossom bright closeup colorful decorative erect fen ragwort flora flower foreground green herbaceous inflorescence lake landscape leaf meadow nature nectar plant outdoors perennial perspective petal protected rare river scarce scenic stem straight summer swamp toothed water wet vegetation wetland yellow flowering marshy edge close-up dutch lake cloudy day spring season