Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum.

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.

Conical flower head of Eryngium giganteum surrounded by spiny, silvery bracts.? Paul Tomlins / Flowerphotos

Sea Holly, Miss Wilmott's ghost, Eryngium giganteum 'Miss Wilmott's ghost'.