Accepted By and Published In:
Stark, L. R. 1996. The status of Weissia sweetii, a species endemic to the southwestern United States. Bryologist 99: 345–348.
Crosby, M. R. & o. REVISED. 1999. REVISED: accepted in a monograph, revision, or descriptive flora since 1963. In Checklist Mosses. Missouri Botanical Garden, St. Louis.