widow orchid References widow orchid plant Ask Anything Homework Help Also known as: Pleurothallis macrophylla Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: PleurothallisThe widow orchid (P. macrophylla) is a dark, deep purple. Read MoreThe widow orchid (P. macrophylla) is a dark, deep purple. Read More