silybum marianum is a species of thistle. it has various common names including milk thistle, blessed milkthistle

mediterranean agriculture milkthistle wildflower background variegated grassland beautiful landscape undefined marianum prairie produce thistle blessed blossom carduus closeup natural outdoor outside silybum flower meadow nature thorns beauty botany floral garden marian purple scotch season spring summer violet plant grass field petal bloom color flora green macro marys saint tansy thorn herb crop lawn mary milk pink weed wild