Atrichum

6 species

In Québec, the genus Atrichum (family Polytrichaceae) counts 6 species of mosses. The stars? Atrichum moss, Undulate atrichum moss and Strongly Crispate Smoothcap, the most often observed. The richest region: Outaouais, with 6 species. Every species has its own page: photos, its season, its habitat and the best places to see it near you.

Species observed by region

Where do the observations come from?

  • Mostly iNaturalist : photos taken by people all over Québec, with the species confirmed by the community.
  • Other public sources : such as eBird for birds and the provincial forest inventories, gathered by GBIF, the global biodiversity data network.
  • What we keep : confirmed observations, with an exact position (not blurred to protect a rare species), that their author allows to be reused.
  • One place counts once : several observations of the same species at the same spot (within 11 m) count as one.
  • So our numbers are lower : than iNaturalist’s total. A region without observations does not mean the species does not live there.

Data downloaded in September 2026.

  1. Outaouais6
  2. Gaspésie–Îles-de-la-Madeleine4
  3. Montérégie4
  4. Capitale-Nationale3
  5. Estrie3
  6. Laurentides3
  7. Mauricie2
  8. Montréal2
  9. Abitibi-Témiscamingue2
  10. Côte-Nord2
  11. Lanaudière2
  12. Bas-Saint-Laurent1
  13. Nord-du-Québec1
  14. Laval1
  15. Centre-du-Québec1