narrow lady fern References narrow lady fern plant Ask Anything Homework Help Also known as: Athyrium angustum 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: lady fern…common lady fern (Athyrium filix-femina), narrow lady fern (A. angustum), and southern lady fern (A. asplenioides). Read More…common lady fern (Athyrium filix-femina), narrow lady fern (A. angustum), and southern lady fern (A. asplenioides). Read More