eryngium officinale, blue-headed field flower on a sunny summer day in the field, selective focus

alpinum aluminum background beautiful bloom blooming blossom blue bouquet bristle bunch burdock closeup colorful decoration decorative eryngium eryngo field flora floral flower gardening growing healing healthcare herb holly leaves medicinal mountain natural nature needle petal plant planum prickly purple sea seaholly spikes spiky spring summer thistle violet wild