close-up of a thistle flower from the top

angiosperms asteraceae background barbed bloom blooming blossom botanical botany carduoideae close closeup detail floral flower flowering garden grass green growth head hedgehog herb herbaceous herbal meadow natural nature needle pink plant purple pycnocephalus season sharp sheep slenderflower spiky spiny spring stem summer thistle thorn thorny top vibrant viewed weed wild wildflower