variegated prickly leaves of cardus marianus or saint mary`s thistle silybum marianum. milk thistle is valuable plant used for

background blessed bloom blooming blossom botanical bud cardus closeconcept closeup color design flora flower focus garden green healthy herb herbal leaf leaves macro marian marianum marianus mary marys medical medicinal medicine milk milkthistle natural nature pink plant prickles prickly purple purposes saint selective sharp silybum spring summer thistle thorn thorny used valuable variegated weed wild wildflower