| Helleborus bocconei Ten. |
Accepted |
16 |
| Helleborus cyclophyllus Boiss. |
Accepted |
16 |
| Helleborus dumetorum Waldst. & Kit. ex Willd. |
Accepted |
16 |
| Helleborus foetidus L. |
Accepted |
16 |
| Helleborus lividus Aiton ex Curtis |
Accepted |
16 |
| Helleborus multifidus Vis. |
Accepted |
16 |
| Helleborus niger L. |
Accepted |
16 |
| Helleborus niger subsp. macranthus (Freyn) Schiffn. |
Accepted |
16 |
| Helleborus odorus Waldst. & Kit. ex Willd. |
Accepted |
16 |
| Helleborus orientalis Lam. |
Accepted |
16 |
| Helleborus purpurascens Waldst. & Kit. |
Accepted |
16 |
| Helleborus thibetanus Franch. |
Accepted |
16 |
| Helleborus viridis L. |
Accepted |
16 |
| Helleborus viridis subsp. occidentalis (Reut.) Schiffn. |
Accepted |
16 |
| Helleborus abchasicus A. Braun |
Unresolved |
16 |
| Helleborus antiquorum A. Braun |
Unresolved |
16 |
| Helleborus vesicarius Aucher ex Boiss. |
Unresolved |
16 |
| Helleborus abchasicus |
Synonym of Helleborus abchasicus A. Braun |
16 |
| Helleborus bocconei None |
Synonym of Helleborus bocconei Ten. |
16 |
| Helleborus dumetorum |
Synonym of Helleborus dumetorum Waldst. & Kit. ex Willd. |
16 |
| Helleborus atrorubens Waldst. & Kit. |
Synonym of Helleborus dumetorum subsp. atrorubens (Waldst. & Kit.) Merxm. & Podlech |
16 |
| Helleborus lividus Aiton |
Synonym of Helleborus lividus Aiton ex Curtis |
16 |
| Helleborus trifolius Mill. |
Synonym of Helleborus lividus Aiton ex Curtis |
16 |
| Helleborus argutifolius Viv. |
Synonym of Helleborus lividus subsp. corsicus (Briq.) P. F. Yeo |
16 |
| Helleborus corsicus Willd. ex Mabille |
Synonym of Helleborus lividus subsp. corsicus (Briq.) P. F. Yeo |
16 |
| Helleborus trifolius subsp. corsicus Briq. |
Synonym of Helleborus lividus subsp. corsicus (Briq.) P. F. Yeo |
16 |
| Helleborus serbicus Adamovic |
Synonym of Helleborus multifidus subsp. serbicus (Adamovic) Merxm. & Podlech |
14 |
| Helleborus torquatus Archer-Hind |
Synonym of Helleborus multifidus subsp. serbicus (Adamovic) Merxm. & Podlech |
14 |
| Helleborus viridis |
Synonym of Helleborus viridis L. |
16 |
| Helleborus ×hybridus None |
Synonym of Helleborus ×hybridus H. Vilm. |
16 |
| Helleborus ×nigercors None |
Synonym of Helleborus ×nigercors A. Wall |
16 |