pink thistle flower in sunset light

alternative asteraceae bloom blossom blossoming botanical branch bristle bud bullthistle cardus cirsium cirsiumvulgare closeup color colorful common commonthistle delicate field flora flower floweringplants garden grassland herb isolated light marianum marianus mary milk natural nature needle petal pink plant pricker prickle purple spike spring sunset therapeutic thistle thistleflower thorn thorny treatment weed willow