*Helleborus Linnaeus. Subfamily: Ranunculoideae. Tribe: Helleboreae. Hellebore, Christmas-rose.
A genus of about 21 species, perennial herbs, of Europe and Asia.
ID notes: Other species of Helleborus are increasingly being cultivated; all have the potential to naturalize.
Ref: Ford (1997b) In Flora of North America Editorial Committee (1997); Tamura In Kubitzki, Rohwer, & Bittrich (1993). Show full citations.
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© Richard & Teresa Ware | Helleborus viridis CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Alan Weakley | 
© aberkov, some rights reserved (CC BY), uploaded by aberkov | Helleborus niger source | Original Image ⭷ Warning: was NOT research grade.