helleborus niger subspecie macranthus

alpine awakening background beautiful beauty biology black blossom blossoms botanic botany christmas christmasrose clade conservatorie evergreen flora floral floras flower flowering fruits garden genus growth hellebore helleborine helleborus hellobore herb inflorecence inflorescence institute leaf lethargy macranthus macro medicinal medicine mountainous mountains natural nature niger outdoors perennial petal phytogeographical phytomedicine pink pistil plant plants pod poisoning poisonous progress ranunculaceae rare riverlet rose scientific scion season specimen sprout stamen stamens stem stigma studies subspecie sunlight taxa taxonomy white wild winter wintertime xmas