autumn bi-colored dahlia flower garden nature petals pink plant red two-tone delicate fragile iris japanese mauve spring temperate white yellow coastline estuary low Mud mudbank natural pattern rill texture tidal tide water background green leaf palm radial ribbed stalk tropical umbrella animal close close-up fly insect macro orange sharp bud Goldenrod grow Solidago summer Anagallis blue dune Myrsinaceae petal sand Spain wild abundance abundant colour dolomites flowers Italy many meadow profusion variety