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World Checklist of Selected Plant Families (WCSP)

Epipactis helleborine subsp. orbicularis (K.Richt.) E.Klein, Phyton (Horn) 37: 74 (1997).

Original Compiler: R.Govaerts

This name is Accepted by:

  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • G.I.R.O.S. (2009). Orchidee d'Italia: 1-303. Il Castello srl, Italy.
  • Birkedal, S. & Kreutz, K. (2009). Knipprötter i Skåne. Botaniska Notiser 142(4): 1-11.