milk thistle (silybum marianum) dry spreading its seeds.

plant nature flower grass prairie wildflower meadow field thorns leaf autumn grassland wildlife crop branch tree produce milk thistle silybum marianum dry spreading its seeds alternative background bloom blooming blossom bud closeup color colorful ecology flavonoid flora floral green head healthy herb herbaceous herbal liver macro medicinal medicine natural organic pricker purple spike spring summer symbol thorn thorny violet wild san asensio rioja