Alaska Arctic Plant Communities

4. Eriophorum angustifolium-Carex aquatilis subtype Dupontia fisheri

Photo A. <em>Eriophorum angustifolium</em>-<em>Carex aquatilis</em> subtype <em>Dupontia fisheri</em> in a wet meadow at Barrow, AK. The white inflorescences of <em>Eriophorum russeolum</em> are visible. This unit was designated as Nodum V (Wet <em>Dupontia fisheri</em>-<em>Eriophorum angustifolium</em> meadow by Webber (1978). Webber et al. 1978, Fig. 6. D.A. Walker.

Photo B. <em>Eriophorum angustifolium</em>-<em>Carex aquatilis</em> subtype <em>Dupontia fisheri</em> in a wet polygon trough at Barrow, AK. (Included in Nodum V of Webber, 1978). Community type 3 occupies the polygon centers. Webber et al. 1978, Fig. 5. D.A. Walker.

Photo C. Another meadow of <em>Eriophorum angustifolium</em>-<em>Carex aquatilis</em> subtype <em>Dupontia fisheri</em> at Barrow. Walker slide 74-?-11. D.A. Walker.

Photo D. Close up of the community shown in Photo C, with abundant <em>Alopecurus alpinus</em> (gray cottony inflorescences). (Subtype 8 of Walker, 1977). Walker slide 73-45-13 OR 73-45-15?? D.A. Walker.

Bioclimate Subzone: C

Floristic Subprovince: Northern Alaska

Substrate Chemistry: Acidic

Position along mesotopographic gradient: Wet site

Summary of Habitat: Wet coastal tundra in subzone C

Described from:

Common plant functional types and species:

Sedge: Carex aquatilis; Eriophorum angustifolium ssp. triste;

Grass: Dupontia fisheri; Arctophila fulva;

Moss: Limprichtia revolvens; Sarmenthypnum sarmentosum;

General Comments:

Other names from the Alaska literature: