The formerly broadly circumscribed Brachyelytrum erectum has been recently split into two more narrowly circumscribed species- B. erectum (Schreb.) Beauv. (sensu stricto) and B. aristosum (Michx.) Beauv. ex Branner & Coville. They are herein mapped as one unit until further research can clarify the occurrence and distribution of these taxa in the NY metropolitan area.
