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.Altervista Flora Italiana, Sonchus palustris L. includes illustrations and European distribution map.Flora of China, Sonchus palustris Linnaeus, 1753. 沼生苦苣菜 zhao sheng ku ju cai 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. The species epithet palustris is Latin for "of the marsh" and indicates its common habitat.Archibald William Smith 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.Flora of North America, Sonchus palustris Linnaeus, 1753. Marsh sow-thistle
References