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World Checklist of Selected Plant Families (WCSP)

Calystegia spithamaea subsp. purshiana (Wherry) Brummitt, Ann. Missouri Bot. Gard. 52: 215 (1965).

Original Compiler: George Staples

This name is Accepted by:

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