common twayblade References common twayblade plant Ask Anything Homework Help Also known as: Listera ovata, Neottia ovata 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: twaybladeThe common twayblade (N. ovata), found throughout Eurasia, has small green flowers and broad egg-shaped leaves. The lesser twayblade (N. cordata), also widespread in Eurasia, has heart-shaped leaves. Read MoreThe common twayblade (N. ovata), found throughout Eurasia, has small green flowers and broad egg-shaped leaves. The lesser twayblade (N. cordata), also widespread in Eurasia, has heart-shaped leaves. Read More