Helleborus Directory References Quizzes All Things Green Quiz Contents Ask the Chatbot a Question Helleborus plant genus Ask the Chatbot a Question Learn about this topic in these articles:characteristics In helleboregenera of poisonous herbaceous plants, Helleborus and Veratrum, some species of which are grown as garden ornamentals.Read More Britannica ChatbotChatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.