The overall morphology and structure of the N. dunthornei leaves compare to the living species known as the Shasta snow-wreath (N. cliftonii), being broadly ovate, with secondary veins subopposite and a similar overall vein patterning.
The type species, Neviusia alabamensis, occurs in several southeastern states, while second extant species, Neviusia cliftonii, is endemic to the Mt Shasta region of California, and the extinct species Neviusia dunthornei is found in shale deposits in the Okanagan Highlands of Washington and British Columbia.