16. Trichophorum Pers.
About 8 species, U.S., Canada, Europe, Asia.
Trichophorum has been included in
the genus Scirpus in most of the North American botanical literature.
For further discussions of the segregation of genera from Scirpus, see
the treatment of that genus and the review of Missouri bulrushes by Smith and
Yatskievych (1996).