Branch leaves smaller than stem leaves and sometimes narrower.
Palustriella species occur in more or less strongly calcareous wetland habitats that are at least periodically influenced by springs or otherwise moving water. To the naked eye, Palustriella species are recognizable by their usually strongly plicate leaves and the presence of linear to lanceolate-linear paraphyllia. A small genus with three species widely distributed in the Holarctic region. One species occurs in North America, whereas the other two are mainly Eurasian, with a few occurrences in northern Africa. Roth as an 'indicator moss'.