671304a Rorippa palustris subsp. palustris
Distribution
Northern Fennoscandia: Rare
Kanin - Pechora: Scattered
Polar Ural - Novaya Zemlya: Scattered
Yamal - Gydan: Rare
Taimyr - Severnaya Zemlya: Rare
Anabar - Onenyo: Rare
Kharaulakh: Rare
Yana - Kolyma: Rare
West Chukotka: Rare
South Chukotka: Rare
East Chukotka: Rare
Western Greenland: Persistent (Adventive)
Southern Arcti Tundra: Presence uncertain
Shrub Tundra: Scattered
Bordering boreal or alpine areas: Frequent
- Rorippa williamsii Britton, Bull. New York Bot. Gard. 2: 171 (1901). Type: Alaska: the mouth of Bonanza Creek, leg. Williams. - Rorippa palustris var. williamsii (Britton) Hultén
- Hultén, Acta Univ. Lund., n. s., sect. 2, 41, 1: 828 (1945).
- Rorippa islandica var. fernaldiana Butters & Abbe, Rhodora 42: 28 (1940), in nota. Type (MIN): U.S.A.: Maine, Fl. Fairfield, 06. July 1896, leg. M.L. Fernald. - Rorippa islandica subsp. fernaldiana (Butters & Abbe) Hultén, Ark. Bot., n. s., 7, 1: 61 (1968). - Rorippa palustris subsp. fernaldiana (Butters & Abbe) Jonsell, Symb. Bot. Upsal. 19, 2: 158 (1968). - Rorippa palustris var. fernaldiana (Butters & Abbe) Stuckey, Sida 4: 361 (1972).
2n=
32 (4x). - Europe, Siberia, Far East. - Numerous reports, mostly referred by Jalas and Suominen (1994). Reports by Mulligan (1964, for "fernaldiana"), Jonsell (1968, five counts for "fernaldiana"), and Dawe and Murray (1980, for "hispida") from Alaska are from within the range of the proposed var. williamsii. Reports by Löve and Löve (1975d, 1982a) and Mulligan (1984) from Canada are from within the range of var. fernaldiana.
Geography: Circumboreal: NOR RUS SIB RFE ALA CAN GRL**.
Notes: Variety williamsii is reported as Cordilleran and possibly amphi-Beringian with arctic records from West Chukotka (uncertain), West Alaska (scattered), North Alaska-Yukon (scattered), and Central Canada (rare). Variety fernaldiana is reported as North American with arctic records from the southwestern Hudson Bay (Hultén and Fries 1986).
Higher Taxa
- Rorippa palustris [671304,species]