446 Carex brunnescens (Pers.) Poir.

This mainly boreal-montane species (incl. subsp. vitilis [Fr.] Kalela) belongs to the circumpolar plants (Hultén, Circumpol. I, p. 40 and map 34). It may sometimes be confused with forms of C. canescens. Its distribution is, partly for that reason, insufficiently known, especially in Siberia.