Calystegia spithamaea subsp. purshiana (Wherry) Brummitt

First published in Ann. Missouri Bot. Gard. 52: 215 (1965)
This subspecies is accepted
The native range of this subspecies is Pennsylvania to Alabama. It is a scrambling subshrub and grows primarily in the temperate biome.

Distribution

Native to:

Alabama, Georgia, Maryland, North Carolina, Pennsylvania, South Carolina, Virginia, West Virginia

Synonyms

Homotypic Synonyms

Heterotypic Synonyms

POWO follows these authorities in accepting this name:

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.
  • Kartesz, J.T. in Kartesz, J.T. (1994). Convolvulaceae. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland: 217-221. Timber Press.

An alternative taxonomy had been proposed by the following authorities:

  • Knapp, W.M. & Naczi, R.F.C. (2021). Vascular plants of Maryland, USA. A comprehensive account of the state's botanical diversity. Smithsonian Contributions to Botany 113: 1-151. [Cited as Calystegia spithamaea subsp. stans.]

Kew Backbone Distributions

  • Fernald & Rollins in Fernald, M.L. with R. C. Rollins (1950). Gray's Manual of Botany, 8th edition: 1177-1185. Dioscorides Press.
  • USDA, NRCS (2005- continuously updated). Natural Resources Conservation Services Plant Database http://plants.usda.gov/cgi_bin/topics.cgi?earl=checklist.html.

Other Data

Other Kew resources that provide information on this taxon:

Sources

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2022 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0