67 



rfl 



w. 



Plate 22.— Classification: system Estuarine, subsystem Intertidal, class Emergent Wetland, SUBCLASS Persistent, dominance 

 type Carex lyngbyei, water regime Irregularly Flooded, water chemistry Oligohaline, SOIL Mineral. Subordinate species in- 

 clude sedge (Carex plurijlora), silverweed (Potentilla anserina), arrow grass (Triglochin maritimum), and mare's tail (Hippuris 

 tetraphylla). Located on the floodplain of a tidal river, this site receives freshwater runoff from the Chugach Mountains and the 

 Twenty-mile Glacier (center background), and is also inundated by exceptionally high tides. Soil salinity during October 1985 

 was 3.0%o. (Muncipality of Anchorage, Alaska; June 1985; Photo by F. C. Golet) 



