Alaska Arctic Plant Communities

2. Carex aquatilis-Saxifraga cernua

Photo A. Community type <em>Carex aquatilis</em>-<em>Saxifrage cernua</em> in a moist meadow near the NOAA Barrow Observatory. Elias et al. 1996, Fig. 8a. D.A. Walker.

Photo A. Community type Carex aquatilis-Saxifrage cernua in a moist meadow near the NOAA Barrow Observatory. Elias et al. 1996, Fig. 8a. Photo D.A. Walker.
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Photo B. Close up showing the sedge <em>Carex aquatilis</em> and scattered forbs. Larger green leaves are <em>Petasites frigidus</em>. Elias et al. 1996, Fig. 8b. D.A. Walker.

Photo B. Close up showing the sedge Carex aquatilis and scattered forbs. Larger green leaves are Petasites frigidus. Elias et al. 1996, Fig. 8b. Photo D.A. Walker.
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Bioclimate Subzone: C

Floristic Subprovince: Northern Alaska

Substrate Chemistry: Acidic

Position along mesotopographic gradient: Moist site

Summary of Habitat: Moist acidic coastal tundra in subzone C

Described from: Barrow (Webber 1978)

 

Common plant functional types and species:

Sedge: Carex aquatilis; Eriophorum angustifolium ssp. triste;

Grass: Poa arctica; Dupontia fisheri; Alopecurus alpinus;

Rush: Luzula arctica;

Prostrate dwarf shrubs: Salix rotundifolia; Salix pulchra;

Forb: Saxifraga cernua; Saxifraga foliolosa; Saxifraga hieraciifolia; Saxifraga hirculus; Cardamine pratensis; Petasites frigidus; Stellaria spp.; Ranunculus nivalis;

Moss: Oncophorus wahlenbergii; Dicranum elongatum; Sarmenthypnum sarmentosum; Aulacomnium turgidum; Mnium sp.;

Lichen: Sphaerophorus globosus; Dactylina arctica; Cladonia spp.; Cetraria spp.; Flavocetraria cucullata; Thamnolia subuliformis;

 

General Comments:

 

Other names from the Alaska literature:

 

Braun-Blanquet Name: