1. Leaves evergreen (overwintering); bracts simple, entire; flowers white to pinkish.

H. niger

1. Leaves ± deciduous; bracts at inflorescence divided and serrate; flowers greenish.

H. viridis

All species found in Helleborus

Helleborus nigerCHRISTMAS-ROSE 
Helleborus viridisGREEN HELLEBORE 


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 29, 2017. http://michiganflora.net/genus.aspx?id=Helleborus.