CHRIS HELLIER / SCIENCE PHOTO LIBRARY CHRIS HELLIER / SCIENCE PHOTO LIBRARY
Milk thistle (Silybum marianum) flower stalks. This plant is also known as the blessed or holy thistle. These immature thistle spikes have not yet formed the fully mature purple flower head. This plant's medicinal uses including treating depression, liver, gall problems and poisoning.
Model release not required. Property release available.