Colour Challenge: More flowers, in unspeakable colours

An as yet unidentifies wildflower:

^{Olympus Stylus 1s, 42mm, ISO200, f8, 1/125s}

Bittersweet (Solanum dulcamara), bitterzoet in Dutch:

^{Olympus XZ-1, 28mm, ISO400, f8, 1/250s}

Petunias:

^{Olympus Stylus 1s, 42mm, ISO200, f8, 1/80s}

Brown knapweed (Centaurea jacea), knoopkruid in Dutch:

^{Olympus Stylus 1s, 42mm, ISO100, f5.6, 1/250s}

Thanks for watching!