Angiosperms (Flowering Plants) • Earth.com

Christmas rose

(Helleborus niger)

galery
en

Description

Helleborus niger, commonly called Christmas rose or black hellebore, is an evergreen perennial flowering plant in the buttercup family, Ranunculaceae. It is poisonous. Although the flowers resemble wild roses (and despite its common name), Christmas rose does not belong to the rose family (Rosaceae). The black hellebore was described by Carl Linnaeus in volume one of his Species Plantarum in 1753.The Latin specific name niger (black) may refer to the colour of the roots. There are two subspecies: H. niger subsp. niger and H. niger subsp. macranthus, which has larger flowers (up to 3.75 in/9 cm across). In the wild, H. niger subsp. niger is generally found in mountainous areas in Switzerland, southern Germany, Austria, Slovenia, Croatia and northern Italy. Helleborus niger subsp. macranthus is found only in northern Italy and possibly adjoining parts of Slovenia. Helleborus niger is an evergreen plant with dark leathery pedate leaves carried on stems 9–12 in (23–30 cm) tall. The large flat flowers, borne on short stems from midwinter to early spring, are generally white, but occasionally with a pink tinge. The tips of the petals may be flushed pink or green, and there is a prominent central boss of yellow.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Order:Ranunculales
Family:Ranunculaceae
Genus:Helleborus
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