Hellebore (English Wikipedia)

Susan Banks (2 May 2014). "Nursery owner extols many virtues of hellebores". TheDailyJournal.com. Archived from the original on 28 May 2014. Retrieved 28 May 2014.

ashwoodnurseries.com (Global: low place; English: low place)

"Helleborus x belcheri 'Pink Ice'". Ashwood Nurseries. Retrieved 3 April 2025.

biodiversitylibrary.org (Global: 387^th place; English: 373^rd place)

Linnaeus, Carolus (1753). "Tomus I". Species Plantarum (in Latin). Vol. 1. Stockholm: Laurentii Salvii. p. 557.

books.google.com (Global: 3^rd place; English: 3^rd place)

Olson, Kent R., Poisoning & Drug Overdose, p312 at Google Book Search, accessed 12 January 2009
Smolinske, Susan C., Toxicity of Houseplants, pp38, 153 at Google Book Search, accessed 12 January 2009
Olson, Kent R, Poisoning & Drug Overdose, p309 at Google Book Search, accessed 12 January 2009

britannica.com (Global: 40^th place; English: 58^th place)

"Christmas Rose". Retrieved 18 June 2014.

columbiatribune.com (Global: low place; English: 6,043^rd place)

"Hellebore make for an enchanting addiction". Retrieved 18 June 2014.

cornell.edu (Global: 332^nd place; English: 246^th place)

poisonousplants.ansci.cornell.edu

"Helleborus niger – Christmas Rose". Department of Animal Science – Plants Poisonous to Livestock. Cornell University, College of Agriculture and Life Sciences.

derbyshiregarden.com (Global: low place; English: low place)

"Double Hellebores". Archived from the original on 11 May 2008. Retrieved 9 October 2007.

doi.org (Global: 2^nd place; English: 2^nd place)

Herrera, C. M. (1 September 2005). "Post-floral perianth functionality: contribution of persistent sepals to seed development in Helleborus foetidus (Ranunculaceae)". American Journal of Botany. 92 (9): 1486–1491. doi:10.3732/ajb.92.9.1486. hdl:10261/40233. PMID 21646166. S2CID 9062980.
Meiners, Julia; Debener, Thomas; Schweizer, Guenther; Winkelmann, Traud (February 2011). "Analysis of the taxonomic subdivision within the genus Helleborus by nuclear DNA content and genome-wide DNA markers". Scientia Horticulturae. 128 (1): 38–47. Bibcode:2011ScHor.128...38M. doi:10.1016/j.scienta.2010.12.011.
Werner, Klaus; Ebel, Friedrich (June 1994). "Zur Lebensgeschichte der Gattung Helleborus L. (Ranunculaceae)" [Life history of the genus Hellehorus L. (Ranunculaceae)]. Flora (in German). 189 (2): 97–130. doi:10.1016/S0367-2530(17)30578-9.
Rottensteiner, W. (1 April 2016). "Attempt Of A Morphological Differentiation Of Helleborus Species In The Northwestern Balkans". Modern Phytomorphology. 9 (Suppl): 17–33. doi:10.5281/zenodo.159701.
Valenzuela, Isabel; Carver, Mary; Malipatil, Mallik B; Ridland, Peter M (May 2009). "Occurrence of Macrosiphum hellebori Theobald & Walton (Hemiptera: Aphididae) in Australia". Australian Journal of Entomology. 48 (2): 125–129. doi:10.1111/j.1440-6055.2009.00696.x.
Meiners, Julia; Winkelmann, Traud (October 2011). "Morphological and Genetic Analyses of Hellebore Leaf Spot Disease Isolates from Different Geographic Origins Show Low Variability and Reveal Molecular Evidence for Reclassification into Didymellaceae: Variability of Hellebore Leaf Spot Disease". Journal of Phytopathology. 159 (10): 665–675. doi:10.1111/j.1439-0434.2011.01823.x.
Shiraishi, Takuya; Hoshi, Hideo; Eimori, Koki; Kawanishi, Takeshi; Komatsu, Ken; Hashimoto, Masayoshi; Maejima, Kensaku; Yamaji, Yasuyuki; Namba, Shigetou (July 2011). "First report of Helleborus net necrosis virus isolated from hellebores with black death syndrome in Japan". Journal of General Plant Pathology. 77 (4): 269–272. Bibcode:2011JGPP...77..269S. doi:10.1007/s10327-011-0321-2. S2CID 29088363.
Taylor, Robert K.; Romberg, Megan K.; Alexander, Brett J. R. (December 2011). "A bacterial disease of hellebore caused by Pseudomonas viridiflava in New Zealand". Australasian Plant Disease Notes. 6 (1): 28–29. Bibcode:2011AuPDN...6...28T. doi:10.1007/s13314-011-0010-1. S2CID 7467719.
Tasca, C.; Rapetti, M.; Carta, M. G.; Fadda, B. (2012). "Women and Hysteria in the History of Mental Health". Clinical Practice and Epidemiology in Mental Health. 8: 110–119. doi:10.2174/1745017901208010110. PMC 3480686. PMID 23115576.

etymonline.com (Global: 287^th place; English: 321^st place)

"hellebore (n.)". Online Etymology Dictionary. Douglas Harper. 2001. Retrieved 5 September 2024.

greekgodsandgoddesses.net (Global: low place; English: low place)

"Heracles ( Hercules )". Greek Gods and Goddesses.

handle.net (Global: 102^nd place; English: 76^th place)

hdl.handle.net

Herrera, C. M. (1 September 2005). "Post-floral perianth functionality: contribution of persistent sepals to seed development in Helleborus foetidus (Ranunculaceae)". American Journal of Botany. 92 (9): 1486–1491. doi:10.3732/ajb.92.9.1486. hdl:10261/40233. PMID 21646166. S2CID 9062980.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Meiners, Julia; Debener, Thomas; Schweizer, Guenther; Winkelmann, Traud (February 2011). "Analysis of the taxonomic subdivision within the genus Helleborus by nuclear DNA content and genome-wide DNA markers". Scientia Horticulturae. 128 (1): 38–47. Bibcode:2011ScHor.128...38M. doi:10.1016/j.scienta.2010.12.011.
Shiraishi, Takuya; Hoshi, Hideo; Eimori, Koki; Kawanishi, Takeshi; Komatsu, Ken; Hashimoto, Masayoshi; Maejima, Kensaku; Yamaji, Yasuyuki; Namba, Shigetou (July 2011). "First report of Helleborus net necrosis virus isolated from hellebores with black death syndrome in Japan". Journal of General Plant Pathology. 77 (4): 269–272. Bibcode:2011JGPP...77..269S. doi:10.1007/s10327-011-0321-2. S2CID 29088363.
Taylor, Robert K.; Romberg, Megan K.; Alexander, Brett J. R. (December 2011). "A bacterial disease of hellebore caused by Pseudomonas viridiflava in New Zealand". Australasian Plant Disease Notes. 6 (1): 28–29. Bibcode:2011AuPDN...6...28T. doi:10.1007/s13314-011-0010-1. S2CID 7467719.

info-helleborus.eu (Global: low place; English: low place)

"About the Helleborus". Archived from the original on 24 July 2014. Retrieved 18 July 2014.

merriam-webster.com (Global: 209^th place; English: 191^st place)

"Definition of HELLEBORE". www.merriam-webster.com. 24 February 2024.
"hellebore". merriam-webster.com. Retrieved 18 June 2014.

mobot.org (Global: 2,238^th place; English: 4,159^th place)

"Vascular Plant Families and Genera - List of Genera in Melanthiaceae". mobot.org. Retrieved 21 October 2010.

ncsu.edu (Global: 2,542^nd place; English: 1,675^th place)

plants.ces.ncsu.edu

"Helleborus orientalis". NC State University.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

Herrera, C. M. (1 September 2005). "Post-floral perianth functionality: contribution of persistent sepals to seed development in Helleborus foetidus (Ranunculaceae)". American Journal of Botany. 92 (9): 1486–1491. doi:10.3732/ajb.92.9.1486. hdl:10261/40233. PMID 21646166. S2CID 9062980.
Tasca, C.; Rapetti, M.; Carta, M. G.; Fadda, B. (2012). "Women and Hysteria in the History of Mental Health". Clinical Practice and Epidemiology in Mental Health. 8: 110–119. doi:10.2174/1745017901208010110. PMC 3480686. PMID 23115576.

ncbi.nlm.nih.gov

Tasca, C.; Rapetti, M.; Carta, M. G.; Fadda, B. (2012). "Women and Hysteria in the History of Mental Health". Clinical Practice and Epidemiology in Mental Health. 8: 110–119. doi:10.2174/1745017901208010110. PMC 3480686. PMID 23115576.

rhs.org.uk (Global: 1,026^th place; English: 582^nd place)

apps.rhs.org.uk

"RHS Plant Selector Helleborus argutifolius AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 18 December 2019. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus foetidus AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 4 February 2012. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus lividus AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 18 December 2019. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus niger AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 8 December 2013. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus × sternii Blackthorn Group AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 9 September 2015. Retrieved 2 August 2012.

rhs.org.uk

"Helleborus Walberton's Rosemary 'Walhero'(PBR)". www.rhs.org. Royal Horticultural Society. Retrieved 6 August 2020.
"Hellebore leaf miner". Royal Horticulture Society.
"Hellebore Aphid". Royal Horticultural Society.
"Grey Mould". Royal Horticulture Society.
"Hellebore black death". Royal Horticultural Society.

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Herrera, C. M. (1 September 2005). "Post-floral perianth functionality: contribution of persistent sepals to seed development in Helleborus foetidus (Ranunculaceae)". American Journal of Botany. 92 (9): 1486–1491. doi:10.3732/ajb.92.9.1486. hdl:10261/40233. PMID 21646166. S2CID 9062980.
Shiraishi, Takuya; Hoshi, Hideo; Eimori, Koki; Kawanishi, Takeshi; Komatsu, Ken; Hashimoto, Masayoshi; Maejima, Kensaku; Yamaji, Yasuyuki; Namba, Shigetou (July 2011). "First report of Helleborus net necrosis virus isolated from hellebores with black death syndrome in Japan". Journal of General Plant Pathology. 77 (4): 269–272. Bibcode:2011JGPP...77..269S. doi:10.1007/s10327-011-0321-2. S2CID 29088363.
Taylor, Robert K.; Romberg, Megan K.; Alexander, Brett J. R. (December 2011). "A bacterial disease of hellebore caused by Pseudomonas viridiflava in New Zealand". Australasian Plant Disease Notes. 6 (1): 28–29. Bibcode:2011AuPDN...6...28T. doi:10.1007/s13314-011-0010-1. S2CID 7467719.

tabularium.be (Global: low place; English: low place)

Bailly, Anatole. "Greek-french dictionary online". www.tabularium.be. Archived from the original on 18 March 2022. Retrieved 6 January 2018.

tennessee.edu (Global: low place; English: 9,008^th place)

ag.tennessee.edu

"February 2013 Plant of the Month: Hellebore". Retrieved 9 June 2014.

thedailyjournal.com (Global: low place; English: low place)

Susan Banks (2 May 2014). "Nursery owner extols many virtues of hellebores". TheDailyJournal.com. Archived from the original on 28 May 2014. Retrieved 28 May 2014.

vocal.media (Global: low place; English: 9,631^st place)

"Guide to Growing Hellebore Flowers". Lifehack. Retrieved 15 June 2023.

web.archive.org (Global: 1^st place; English: 1^st place)

Bailly, Anatole. "Greek-french dictionary online". www.tabularium.be. Archived from the original on 18 March 2022. Retrieved 6 January 2018.
"Double Hellebores". Archived from the original on 11 May 2008. Retrieved 9 October 2007.
"RHS Plant Selector Helleborus argutifolius AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 18 December 2019. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus foetidus AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 4 February 2012. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus lividus AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 18 December 2019. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus niger AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 8 December 2013. Retrieved 2 August 2012.
"RHS Plant Selector Helleborus × sternii Blackthorn Group AGM / RHS Gardening". Apps.rhs.org.uk. Archived from the original on 9 September 2015. Retrieved 2 August 2012.
"About the Helleborus". Archived from the original on 24 July 2014. Retrieved 18 July 2014.

wikisource.org (Global: 27^th place; English: 51^st place)

en.wikisource.org

Chisholm, Hugh, ed. (1911). "Hellebore, citing Codronchius (Comm.... de elleb., 1610), Castellus (De helleb. epist., 1622)" . Encyclopædia Britannica. Vol. 13 (11th ed.). Cambridge University Press. pp. 235–236.

wiktionary.org (Global: 649^th place; English: 827^th place)

en.wiktionary.org

"hellebore - Wiktionary". en.wiktionary.org. Retrieved 2 March 2021.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Bailly, Anatole (1981). Abrégé du dictionnaire grec français. Paris: Hachette. ISBN 978-2010035289. OCLC 461974285.

yates.co.nz (Global: low place; English: low place)

"Hellebores' roses of winter - Yates". www.yates.co.nz.

Hellebore (English Wikipedia)

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