Epipactis purpurata subsp. purpurata Epipactis purpurata subsp. rechingeri Epipactis purpurata subsp. halacsyi
Epipactis latifolia var. purpurata Serapias latifolia var. sylvestris Epipactis latifolia subsp. purpurata Epipactis latifolia subsp. violacea Epipactis latifolia subsp. viridiflora Helleborine purpurata Helleborine violacea Epipactis helleborine var. violacea Epipactis varians Epipactis latifolia var. bracteis-longioribus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024