Helleborus niger L.

Synonyms: Helleborus altifolius Steud.
Homonyms: Helleborus niger L.
Common names: Almindelig Julerose in Danish; Blaa Nollick in Manx; Black hellebore in English; Carny kichac in language.; Christmas Rose in English; Christmas Rose in English; Christmas-rose in English; Christmas-rose in language.; Christmas-rose in English; Christmas-rose in English; Christrose in German; Christrose in German; Christrose in German; Christrose in German; Christrose in German; Ciemiernik Biały in Polish; Crni kukurijek in Croatian; Elleboro bianco in Italian; Elleboro bianco in Italian; Elleboro bianco in Italian; Elleboro bianco in Italian; Elleboro nero in Italian; Ellébore noir in French; Ellébore noir, Hellébore noir, Rose de Noël in French; Eléboro negro in Spanish; Fekete hunyor in Hungarian; Hellébore noir in French; Hellébore noir in French; Hel·lèbor negre in Catalan–Valencian; Hvid julerose in Danish; Kerstroos in Dutch; Nigra heleboro in Esperanto; Noel gülü in Turkish; Pelydr Du in Welsh; Pitallón negru in language.; Qara şaxtagülü in Azerbaijani; Rosa di Natale in Italian; Rosa di Natale in Italian; Rosa di Natale in Italian; Rose de Noel in French; Rose de Noel in French; Rose de Noel in French; Rose de Noël in French; Rose de Noël in French; Rose-de-Noël in French; Schneerose in German; Schneerose in German; Schneerose in German; Schwarze Nieswurz in German; Schwarze Nieswurz in German

Karlsson (1998) Förteckning över svenska kärlväxter (The vascular plants of Sweden - a checklist)
Mirek Z., Piękoś-Mirkowa H., Zając A., Zając A., Zając M.. 2020. Vascular plants of Poland. An annotated checklist. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków