Taxon: Asclepias speciosa Torr.

Genus: Asclepias
Family: Apocynaceae
  Subfamily: Asclepiadoideae
      Tribe: Asclepiadeae
        Subtribe: Asclepiadinae
Nomen number: 316574
Place of publication: Ann. Lyceum Nat. Hist. New York 2:218. 1827 (Acct. pl. Rocky Mts.)
Name Verified on: 05-Jul-2011 by ARS Systematic Botanists. Last Changed: 27-Dec-2011
Species priority site is: Western Regional PI Station (W6)
Accessions: 16 in National Plant Germplasm System (GoogleMap)

Common names:

Economic Importance:

  • Materials: potential as fiber (fide Zeller & Knudsen 1996)
  • Vertebrate poisons: mammals (fide Kingsbury)
  • Weed: potential seed contaminant (fide Intermt F)

Distributional Range:


  • Northern America

    • North-Central U.S.A.: United States - Illinois, - Iowa, - Kansas, - Minnesota, - Missouri, - Nebraska, - North Dakota, - Oklahoma, - South Dakota, - Wisconsin
    • Northeastern U.S.A.: United States - Michigan, - Ohio
    • Northwestern U.S.A.: United States - Colorado, - Idaho, - Montana, - Oregon, - Washington, - Wyoming
    • South-Central U.S.A.: United States - New Mexico, - Texas
    • Southwestern U.S.A.: United States - Arizona, - California, - Nevada, - Utah
    • Western Canada: Canada - Alberta, - British Columbia, - Manitoba, - Saskatchewan


  • Aldén, B., S. Ryman & M. Hjertson Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin). 2009 (Vara kulturvaxt namn)
  • Correll, D. S. & M. C. Johnston Manual of the vascular plants of Texas. 1970 (F Tex)
  • Cronquist, A. et al. Intermountain flora. 1972- (Intermt F)
  • Erhardt, W. et al. Der große Zander: Enzyklopädie der Pflanzennamen. 2008 (Zander Ency)
  • Food and Agriculture Organization of the United Nations (FAO) 2010. Ecocrop (on-line resource). (Ecocrop)
  • Foster, S. & C. Hobbs A field guide to Western medicinal plants and herbs. 2002 (W Med Pl Herbs)
  • Kartesz, J. T. North American plant atlas. The Biota of North America Program (BONAP). 2011 (NAmer Pl Atlas)
  • Kindscher, K. Medicinal wild plants of the prairie: an ethnobotanical guide. 1992 (Med Wild Pl Prairie)
  • Kingsbury, J. M. Poisonous plants of the United States and Canada. 1964 (Kingsbury)
  • Martin, W. C. & C. R. Hutchins A flora of New Mexico. 1980 (F New Mex)
  • McGregor, R. L. et al. (The Great Plains Flora Association) Flora of the Great Plains. 1986 (F GPlains)
  • Moerman, D. Native American ethnobotany, ed. 5. 1998 (Nat Amer Ethnobot)
  • Moore, M. Medicinal plants of the mountain west, ed. 2. 2003 (Med Pl MtW)
  • Munro, D. B. Canadian poisonous plants information system (on-line resource). (Can Poison Pl)
  • Scoggan, H. J. The flora of Canada, 4 vol. 1978-1979 (F Canada)
  • Welsh, S. L. et al. A Utah flora. Great Basin Naturalist Mem. 9. 1987 (F Utah)
  • Zeller, R. D. & H. D. Knudsen 1996. Commercial production of milkweed pods: an alternative business. In: Proceedings of the Ninth International Conference on Jojoba & the Third International Conference on New Industrial Crops 398-402.

Check other web resources for Asclepias speciosa Torr. :


  • Seed: U.S. National Seed Herbarium image