The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

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  • 2011. database, Dryopteridaceae s.l. of North America Update
  • Böcher, T. W. 1978. Greenlands Flora 326 pp.   http://www.tropicos.org/Reference/44208 External link.
  • Böcher, T. W., K. Holmen & K. Jacobsen. 1968. Fl. Greenland (ed. 2) 312 pp.   http://www.tropicos.org/Reference/1507 External link.
  • C.Michael Hogan. 2009. Marsh Thistle: Cirsium palustre. GlobalTwitcher.com, ed. N.Strömberg.
  • C.Michael Hogan. 2011. "Sarmatic mixed forests". Topic ed. Sidney Draggan. Ed.-in-chief Cutler J.Cleveland. Encyclopedia of Earth. Environmental Information Coalition, National Council for Science and the Environment http://www.eoearth.org/article/Sarmatic_mixed_forests
  • Cody, W. J. 1996. Fl. Yukon Terr. i–xvii, 1–669. NRC Research Press, Ottawa.   http://www.tropicos.org/Reference/1006819 External link.
  • Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.   http://www.tropicos.org/Reference/1327 External link.
  • Flora of China Editorial Committee. 1988-2013. Fl. China Unpaginated. Science Press & Missouri Botanical Garden Press, Beijing & St. Louis.   http://www.tropicos.org/Reference/42480 External link.
  • Flora of North America Editorial Committee, e. 1993. Pteridophytes and Gymnosperms. 2: i–xvi, 1–475. In Fl. N. Amer. Oxford University Press, New York.   http://www.tropicos.org/Reference/10884 External link.
  • Gleason, H. A. & A. J. Cronquist. 1968. The Pteridophytoa, Gymnospermae and Monocotyledoneae. 1: 1–482. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York.   http://www.tropicos.org/Reference/1495 External link.
  • H.Sjors. 1999. Swedish plant geography: The background: Geology, climate and zonation. Acta Phytogeogr. Suec. Uppsala: Opulus press, 84:5-14.
  • Hitchcock, C. H., A. J. Cronquist, F. M. Ownbey & J. W. Thompson. 1969. Vascular Cryptogams, Gymnosperms, and Monocotyledons. 1: 1–914. In Vasc. Pl. Pacif. N.W. University of Washington Press, Seattle.   http://www.tropicos.org/Reference/1460 External link.
  • Hultén, E. 1968. Fl. Alaska i–xxi, 1–1008. Stanford University Press, Stanford.   http://www.tropicos.org/Reference/1480 External link.
  • Lellinger, D. B. 1985. A Field Manual of the Ferns and Fern Allies of the United States and Canada. 389 pp.   http://www.tropicos.org/Reference/1316 External link.
  • Moss, E. H. 1983. Fl. Alberta (ed. 2) i–xii, 1–687. University of Toronto Press, Toronto.   http://www.tropicos.org/Reference/1483 External link.
  • Orrell T. (custodian) (2013). ITIS Regional: The Integrated Taxonomic Information System (version Apr 2011). In: Species 2000 & ITIS Catalogue of Life, 11th March 2013 (Roskov Y., Kunze T., Paglinawan L., Orrell T., Nicolson D., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Hernandez F., De Wever A., eds). Digital resource at www.catalogueoflife.org/col/. Species 2000: Reading, UK.
  • Porsild, A. E. & W. Cody. 1980. Vasc. Pl. Continental Northw. Terr. Canada i–viii, 1–607. National Museum of Natural Sciences, Ottawa.   http://www.tropicos.org/Reference/1481 External link.
  • Scoggan, H. J. 1978 [1979]. Pteridophyta, Gymnospermae, Monocotyledoneae. 2: 93–545. In Fl. Canada. National Museums of Canada, Ottawa.   http://www.tropicos.org/Reference/1482 External link.
  • Taylor, T. M. C. 1970. Pacific Northwest Ferns and Their Allies. 247 pp.   http://www.tropicos.org/Reference/1292 External link.
  • Tolmatchev, A. I. 1960. Arktic. Fl. SSSR 1:1–102.   http://www.tropicos.org/Reference/10147 External link.
  • U.G.Bolub Bohn and C. Hettwer. 2000. Reduced general map of the natural vegetation of Europe. 1:10,000,000. Bonn-Bad Godesberg, Bonn.
  • Welsh, S. L. 1974. Anderson's Fl. Alaska Adj. Parts Canada i–xvi, 1–724. Brigham Young University Press, Provo.   http://www.tropicos.org/Reference/1479 External link.
  • World Wildlife Fund. 2001. Sarmatic mixed forests. (PA0436).

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