Genus Trichophorum Persoon, Clubrush
The Trichophorum genus is represented by two species in Renfrew County: Trichophorum alpinum and Trichophorum cespitosum. Another species in this genus, Trichophorum clintonii, has been found close by along the Petawawa River in Algonquin Park and may potentially be found downstream within Renfrew County.