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Helleborus viridis, Sp. Pl.: 558. 1753
Helleborus viridis subsp. abruzzicus in Inform. Bot. Ital. 45: 106. 2013
Helleborus viridis subsp. bocconei in Inform. Bot. Ital. 42: 530. 2010
Helleborus viridis subsp. dumetorum in Repert. Spec. Nov. Regni Veg. Beih. 30(1): 299. 1924
Helleborus viridis subsp. intermedius, Comp. Fl. Ital.: 17. 1882
Helleborus viridis subsp. istriacus in Webbia 49: 12. 1994
Helleborus viridis subsp. liguricus in Inform. Bot. Ital. 45: 106. 2013
Helleborus viridis subsp. occidentalis in Bot. Jahrb. Syst. 11: 118. 1889
Helleborus viridis var. cyclophyllus, Index Sem. Hort. Bot. Berol. 1861, Appendix: 14. 1861