Accepted By and Published In:
Zander, R. H. 1999. A new species of Didymodon (Bryopsida) from western North America and a regional key to the taxa. Bryologist 102: 112–115.
Crosby, M. R. & o. SINCE-63. 1999. Described and not synonymized SINCE-1963 but not further REVISED. In Checklist Mosses. Missouri Botanical Garden, St. Louis.
Flora of North America Editorial Committee. 2007. Bryophytes: Mosses. Fl. N. Amer. 27: i–xxi, 1–713.