miss wilmotts ghost (eryngium giganteum) flowers

background flower summer nature grass leaf white floral beauty garden green plant silver beautiful natural botany thorn blossom macro spiny thorny cone thistle bloom bracts bright shrub eryngium giganteum miss wilmette ghost flower head closeup perennial blossoming colorful sea holly outdoors close-up cactus defocussed eryngium ornamental unknown apiaceae leaves species variety uk bract blurred holly