millimetres long dry achenes on very fine & numerous, white or dirty white, fluffy, pappus bristles. The seeds have been shown to survive in the soil for more than a year but less than 5 years, the maximum longevity unknown. Roots: Fibrous and without a tap root. Distribution Tephroseris palustris grows in areas that have freezing winters and in moist to wet soils, such as damp meadows, swamps, sandy pond edges and roadside ditches at altitudes of 0 to It is the most common annual plant species in the eastern Canadian Arctic. Native America North America: Alaska, Iowa, Michigan, Minnesota, North Dakota, South Dakota, Wisconsin, British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, Newfoundland and Labrador, Yukon, Northwest Territories, Nunavut Asia Northwestern Asia: Astrakhan Oblast, Bashkortostan, Belgorod Oblast, Bryansk Oblast, Chuvashia, Franz Josef Land, Kalmykia, Kaluga Oblast, Kirov Oblast or Vyatka, Kursk Oblast, Lipetsk Oblast, Mordovia, Novgorod Oblast, Novaya Zemlya, Orenburg Oblast, Penza Oblast, Perm Krai, Pskov Oblast, Rostov Oblast, Ryazan Oblast, Saint Petersburg, Samara Oblast, Saratov Oblast, Tambov Oblast, Tatarstan, Tula Oblast, Ulyanovsk Oblast, Udmurtia, Volgograd Oblast, Voronezh Oblast Europe Northern Europe: Denmark, Estonia, Latvia, Sweden Middle Europe: Czech Republic, Poland East Europe: Belarus, Kaliningrad Oblast, Lithuania, Ukraine West Europe: France, Luxembourg, Netherlands Southeastern Europe: Croatia Current America North America: Alaska, Iowa, Michigan, Minnesota, North Dakota, South Dakota, Wisconsin, British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, Newfoundland and Labrador, Yukon, Northwest Territories, Nunavut Asia Northwestern Asia: Astrakhan Oblast, Bashkortostan, Belgorod Oblast, Bryansk Oblast, Chuvashia, Franz Joseph Land, Kalmykia, Kaluga Oblast, Kirov Oblast or Vyatka, Kursk Oblast, Lipetsk Oblast, Mordovia, Novgorod Oblast, Novaya Zemlya, Orenburg Oblast, Penza Oblast, Perm Krai, Pskov Oblast, Rostov Oblast, Ryazan Oblast, Saint Petersburg, Samara Oblast, Saratov Oblast, Tambov Oblast, Tatarstan, Tula Oblast, Ulyanovsk Oblast, Udmurtia, Volgograd Oblast, Voronezh Oblast Europe Northern Europe: Denmark, Estonia (decreasing), Latvia, Sweden Middle Europe: Czech Republic, Poland, Slovakia East Europe: Belarus, Kaliningrad Oblast, Lithuania, Ukraine West Europe: Belgium, France, Luxembourg, Netherlands Southeastern Europe: Croatia Southwestern Europe: Andorra, Gibraltar, Spain Range maps Noxiousness and toxicity Toxicity: Marsh ragwort is considered a vegetable and safe for human consumption; the young leaves and flowering stems of Senecio congestus can be eaten raw as salad, cooked as a potherb or made into a "sauerkraut", Noxiousness: Tephroseris palustris appears on a list of North Dakota plants to be monitored, however, it tends