eryngium campestre. field eryngo, watling street thistle. a stiff, hairless, prickly perennial plant

medicinally environment wildflower ornamental herbaceous decorative campestre perennial sampestre botanical flowering landscape eryngium hairless greenery prickles watling thistle prickly natural ecology outdoor texture vibrant closeup eryngo street nature thorny summer floral field stiff plant ringo spiky hardy used wild