Carex microptera Provisional Herbaceous Alliance
Small-winged sedge meadows

Summary Information

  • Primary Life FormHerb
  • Elevation1500-3400 m
  • State RarityS2?
  • Global RarityG4
  • DistributionUSA: CA, CO, ID, MT, OR, UT, WY (NatureServe)
  • Endemic to CaliforniaNo
  • Endemic to California Floristic Province and DesertsNo
  • Date Added2009/09/01

Characteristic Species

Carex microptera is dominant in the herbaceous layer with Achillea millefolium, Bistorta bistortoides, Carex aquatilis, Carex integra, Carex praegracilis, Carex utriculata, Deschampsia cespitosa, Epilobium halleanum, Juncus arcticus, Muhlenbergia filiformis, Poa pratensis, Symphyotrichum spathulatum, Taraxacum officinale and Veratrum californicum.

Vegetation Layers

Herbs < 1 m; cover is open to intermittent.


Drying edges of meadows, terraces. Soils are mineral with little development. The USFWS Wetland Inventory (1996 national list) recognizes Carex microptera as a FAC* plant.

Other Habitat, Alliance, and Community Groupings

MCV (1995) Sedge series
NVCS (2009) Carex microptera seasonally flooded herbaceous alliance
Calveg Wet grasses and forbs, Perennial grasses and forbs
Holland Wet montane meadow, Dry montane meadow, Wet subalpine or alpine meadow
Munz Freshwater marsh
WHR Wet meadow
CDFW CA Code 45.181.00