Sonchus palustris, commonly known as marsh sowthistle, is a plant native to temperate regions of the Europe, Russia, Central Asia, and Xinjiang in western China.[1] [2] It has also become naturalized in a few locations in the Canadian Province of Ontario.
Sonchus palustris can be found in damp peaty or silty soils rich in nitrogen.[3] The species epithet palustris is Latin for "of the marsh" and indicates its common habitat.[4] It is a perennial herb sometimes as much as 350 cm (almost 12 feet) tall. It produces an array of numerous flower heads, each with numerous yellow ray flowers but no disc flowers.[5]