Helleborus niger, Taxa Only, Exact Match: 10 Treatments

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Helleborus niger     Essl, F., A, Lower & A, Lower, 2008, Bemerkenswerte floristische Funde aus Wien, Niederösterreich, dem Burgenland und der Steiermark, Teil V, Linzer biologische Beiträge 40 (1), pp. 341-369 : 352 352
Helleborus niger     Info Flora, 2021, Info Flora Schweiz - Ranunculaceae, https://www.infoflora.ch/de/flora/ranunculaceae.html (accessed 2023-10-20) : -1 -1
Helleborus niger subsp. macranthus     Info Flora, 2021, Info Flora Schweiz - Ranunculaceae, https://www.infoflora.ch/de/flora/ranunculaceae.html (accessed 2023-10-20) : -1 -1
Helleborus niger     Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part H), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 557-585 : 566 566
Helleborus niger subsp. niger     Info Flora, 2021, Info Flora Schweiz - Ranunculaceae, https://www.infoflora.ch/de/flora/ranunculaceae.html (accessed 2023-10-20) : -1 -1
Helleborus niger   spec. nov.  Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm: Laurentius Salvius : 558 558
Helleborus niger     Hess, Hans Ernst, Landolt, Elias & Hirzel, Rosmarie, 1976, Flora der Schweiz und angrenzender Gebiete. Band 2. Nymphaceae bis Primulaceae (2 nd edition) (p. 956): Ranunculaceae, Birkhaeuser Verlag : 38 38
Helleborus niger     Konrad Lauber, Gerhart Wagner & Andreas Gygax, 2018, Flora Helvetica - Ranunculaceae, Flora Helvetica, Bern: Haupt Verlag, pp. 112-162 : 120 120
Helleborus niger     Peruzzi, Lorenzo, Galasso, Gabriele, Domina, Gianniantonio, Bartolucci, Fabrizio, Santangelo, Annalisa, Alessandrini, Alessandro, Astuti, Giovanni, D’Antraccoli, Marco, Roma-Marzio, Francesco, Ardenghi, Nicola M. G., Barberis, Giuseppina, Conti, Fabio, Bernardo, Liliana, Peccenini, Simonetta, Stinca, Adriano, Wagensommer, Robert P., Bonari, Gianmaria, Iamonico, Duilio, Iberite, Mauro, Viciani, Daniele, Guacchio, Emanuele Del, Galdo, Gianpietro Giusso Del, Lastrucci, Lorenzo, Villani, Mariacristina, Brunu, Antonello, Magrini, Sara, Pistarino, Annalaura, Brullo, Salvatore & Salmeri, Cristina, 2019, An inventory of the names of native, non-endemic vascular plants described from Italy, their loci classici and types, Phytotaxa 410 (1), pp. 1-215 : 83 83
Helleborus niger     Peruzzi, Lorenzo, Galasso, Gabriele, Domina, Gianniantonio, Bartolucci, Fabrizio, Santangelo, Annalisa, Alessandrini, Alessandro, Astuti, Giovanni, D’Antraccoli, Marco, Roma-Marzio, Francesco, Ardenghi, Nicola M. G., Barberis, Giuseppina, Conti, Fabio, Bernardo, Liliana, Peccenini, Simonetta, Stinca, Adriano, Wagensommer, Robert P., Bonari, Gianmaria, Iamonico, Duilio, Iberite, Mauro, Viciani, Daniele, Guacchio, Emanuele Del, Galdo, Gianpietro Giusso Del, Lastrucci, Lorenzo, Villani, Mariacristina, Brunu, Antonello, Magrini, Sara, Pistarino, Annalaura, Brullo, Salvatore & Salmeri, Cristina, 2019, An inventory of the names of native, non-endemic vascular plants described from Italy, their loci classici and types, Phytotaxa 410 (1), pp. 1-215 : 83 83