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

References

  • Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.   http://www.tropicos.org/Reference/1103 External link.
  • CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City.   http://www.tropicos.org/Reference/1033332 External link.
  • Correll, D. S. & M. C. Johnston. 1970. Man. Vasc. Pl. Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.   http://www.tropicos.org/Reference/1493 External link.
  • Cronquist, A. J. 1994. Vascular plants of the intermountain west, U.S.A. 5: 1–496. In A. J. Cronquist, A. H. Holmgren, N. H. Holmgren, J. L. Reveal & P. K. Holmgren (eds.) Intermount. Fl. Hafner Pub. Co., New York.   http://www.tropicos.org/Reference/1002458 External link.
  • Flann C. (ed) (2013). GCC: Global Compositae Checklist (version 3 (Beta), Feb 2012). 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.
  • Flora of North America Editorial Committee, e. 2006. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. 21: i–xxii + 1–616. In Fl. N. Amer. Oxford University Press, New York.   http://www.tropicos.org/Reference/1029473 External link.
  • Great Plains Flora Association. 1986. Fl. Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.   http://www.tropicos.org/Reference/637 External link.
  • Isotype: Nelson, A. & Macbride, J. F. 1916. Bot. Gaz. 61: 46.; Isotype: Nelson, A. 1926. Univ. Wyoming Publ. Sci., Bot. 1: 137.
  • Isotype: Nelson, A. 1904. Bot. Gaz. 37: 276.
  • Isotype: Nelson, A. 1926. Univ. Wyoming Publ. Sci., Bot. 1: 135.
  • Isotype: Rydberg, P. A. 1915. N. Amer. Fl. 34: 137.
  • Isotype: Rydberg, P. A. 1915. N. Amer. Fl. 34: 138.
  • SPECIMEN BASED RECORD. Published protolog data.   http://www.tropicos.org/Reference/9990002 External link.
  • Shreve, F. & I. L. Wiggins. 1964. Veg. Fl. Sonoran Des. 2 vols. Stanford University Press, Stanford.   http://www.tropicos.org/Reference/1805 External link.

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