black hellebore

black hellebore

noun
1. slightly hairy perennial having deep green leathery leaves and flowers that are ultimately purplish-green [syn: lenten rose
2. European evergreen plant with white or purplish rose-like winter-blooming flowers [syn: Christmas rose
WordNet® 3.0, © 2006 by Princeton University.
Cite This Source
Encyclopedia Britannica
Encyclopedia

black hellebore

(species Helleborus niger), small poisonous perennial herb of the buttercup family (Ranunculaceae), known for its tendency to bloom from late autumn to early spring, often in the snow. It has evergreen compound leaves, of seven or more leaflets arranged like the fingers on a hand, that arise directly on leafstalks from the crown of the plant. The striking flowers, of five coloured sepals, are 5 to 7.5 cm (2 to 3 inches) across, are whitish to pinkish green, and appear during the winter, often at Christmas, in mild climates and in late spring in colder areas. Improved varieties include "Altifolius," somewhat taller, and "Potter's Wheel," with broader sepals. The Christmas rose flourishes in moist soil and partial shade in mild climates or in protected locations in colder areas and is sometimes forced to bloom in the greenhouse.

Learn more about black hellebore with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature