The genus is represented worldwide, with species found in North America, Mexico, West Indies, Central America, South America, Europe, Asia, Africa, Atlantic Islands, Pacific Islands, and Australia. Campylopus bicolor is an example found in Australia.
The North American list of species from the genus was revised by Jan-Peter Frahm in 1980. This was based on his own study of over 1,000 herbarium specimens. The most recent checklist of the mosses of North America[3] lists 18 species as being present in North American flora. However, due to a misidentification, there are only 17 accepted species in the region.[4]
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