[Sedges: The Genus Carex in Denali National Park and Preserve]

Northern Cluster Sedge, Northern Clustered Sedge

Carex arcta

Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei

Inflorescence of Northern Cluster Sedge, Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei)

The photo above shows a close-up of the inflorescence of northern cluster sedge as seen in moist meadows (around the periphery of a shallow pond) along the Pacific Crest Trail about one-half mile west of its junction with the Stagman Ridge Trail #12......................September 13, 2008.

Northern Cluster Sedge, Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei)

The photo above shows northern cluster sedge as seen in moist meadows (around the periphery of a shallow pond) along the Pacific Crest Trail about one-half mile west of its junction with the Stagman Ridge Trail #12......................September 13, 2008.
Perigynia of Northern Cluster Sedge, Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei)-- Perigynia of Northern Cluster Sedge, Northern Clustered Sedge: Carex arcta (Synonyms: Carex canescens ssp. polystachya, Carex canescens var. oregana, Carex heleonastes var. scabriuscula, Carex kunzei)
The 2 photos above show close-ups of the veined perigynia of northern cluster sedge as seen in moist meadows (around the periphery of a shallow pond) along the Pacific Crest Trail about one-half mile west of its junction with the Stagman Ridge Trail #12......................September 13, 2008. The perigynia bear a resemblance to those of veined sedge (Carex neurophora) which has a more compact inflorescence.
Paul Slichter