Rumex pseudonatronatus

Field or Finnish dock
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Core eudicots
Order: Caryophyllales
Family: Polygonaceae
Genus: Rumex
Species: R. pseudonatronatus
Binomial name
Rumex pseudonatronatus
(Borbás) Borbás ex Murb.
Synonyms[1][2]
  • Rumex domesticus var. pseudonatronatus Borbás
  • Rumex fennicus (Murb.) Murb.
  • Rumex pseudonatronatus subsp. fennicus Murb.

Rumex pseudonatronatus, common name field dock[3] or Finnish dock, is a plant species native to northern Europe and northern Asia, known from Asiatic and European Russia, China, Mongolia, Kazakhstan, Kyrgyzstan, Finland, Norway, Sweden, Belgium, Netherlands, Estonia, Latvia, Lithuania, Poland, Belarus, etc. It is naturalized and a common weed in much of Canada and to the north-central United States. It is known from every Canadian province from Québec to British Columbia, plus Yukon, North Dakota, South Dakota and Minnesota. It grows in wet and/ore disturbed sites along stream banks, lake shores, roadsides, ditches, cultivated fields, meadows, etc.[4][5][6][7]


Rumex pseudonatronatus is a perennial herb. Stems are erect, up to 150 cm tall, often branching above the middle. Leaves are lanceolate, up to 30 cm long. The inflorescence typically takes up the upper half of the shoot, the flowers green, pink or red, in whorls of up to 30 flowers. Achenes are reddish-brown, up to 3 mm long.[4][8][9]


References

  1. Tropicos
  2. The Plant List
  3. "Rumex pseudonatronatus". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 26 October 2015.
  4. 1 2 Flora of North America v 5
  5. Canada Weed Committee. 1969. Common and botanical names of weeds in Canada 1–67.
  6. Flora of China v 5 p 336
  7. Finnish dock, Sugu Latvijas Daba
  8. Murbeck, Svante Samuel. 1899. Botaniska Notiser 1899: 16.
  9. Borbás, Vincze. 1880. Ertek, Term. Koreb. Mag. Tud. Acad. 11(18): 21.
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