Sea holly, Eryngium variifolium close up of flower. ,

Sea holly, Eryngium variifolium close up of flower.

Sea holly, known as Miss Wilmott's ghost, Eryngium giganteum.

Sea holly, known as Miss Wilmott's ghost, Eryngium giganteum, spikey silvery leaves in soft focus creating a wintery abstract pattern.

Sea holly, known as Miss Wilmott's ghost, Eryngium giganteum, single silvery flower showing central cone and spikey skirt or bract. A bee and other insects are feeding on the nectar.

Sea holly, known as Miss Wilmott's ghost, Eryngium giganteum, single silvery flower showing central cone and spikey skirt or bract.

Sea Holly, Eryngium maritimum.

Sea Holly, Eryngium.

Sea holly, Eryngium planum, Two snow topped seedheads.

Sea holly or Miss Wilmott's ghost, Eryngium giganteum, seedhead filled with snow.

Sea holly, Eryngium zabelii Big Blue, Close view of thistle-like flower head surrounded by silvery blue bracts.

Sea holly, Eryngium zabelii Big Blue, Close view of thistle-like flower head surrounded by silvery blue bracts.