Silybum marianum (Blessed Milkthistle) is a species of annual herb in the family Asteraceae. They have a self-supporting growth form. They are associated with freshwater habitat. They have simple, broad leaves. Flowers are visited by Western Tiger Swallowtail, Seven-spot ladybird, Vanessa cardui, and Honey bee. Individuals can grow to 0.9 m.
EOL has data for 19 attributes, including: