256 Puccinellia phryganodes (Trin.) Scribn. & Merr.

Within this arctic sea-shore species four "races" are distinguished by S0rensen in Meddel. Grønland 136:3/1953, p. 51-61. Their distribution is tentatively marked on the map. The species belongs to the circumpolar plants (Hultén, Circumpol. I, p. 192 and map 182).